Article
Thermodynamics
Abdullah Dawar, Zahir Shah, Asifa Tassaddiq, Saeed Islam, Poom Kumam
Summary: This article applies the microstructural slip principle to simulate the flow of micropolar fluid under different physical scenarios, analyzing the effects of various physical parameters and discussing the influence of couple stress, micro-rotation distribution, and fluid flow properties. The research presents the comparisons of analytical and numerical solutions, as well as the calculations of skin friction, Nusselt number, and Sherwood number through tables.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Tahir Naseem, Urooj Fatima, Mohammad Munir, Azeem Shahzad, Nasreen Kausar, Kottakkaran Sooppy Nisar, C. Ahamed Saleel, Mohamed Abbas
Summary: This study investigates the MHD boundary layer flow past a flat plate with radiation, joule heating, and viscous dissipation effects, considering variable temperature. The temperature variations and characteristics in the fluid are analyzed, and the impacts of temperature power coefficient, Prandtl number, Eckert number, and magnetic parameter are graphically presented.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Bai Yu, Muhammad Ramzan, Saima Riasat, Seifedine Kadry, Yu-Ming Chu, M. Y. Malik
Summary: The study investigates the flow of Ostwald-de-Waele nanofluid past a rotating disk in a porous medium with a melting heat transfer phenomenon. Results indicate that increasing surface catalyzed parameter effectively reduces thermal profile, and the power-law index has a more significant impact on fluid flow and thermal distribution.
SCIENTIFIC REPORTS
(2021)
Article
Thermodynamics
Usman, Waqar Khan, Irfan Anjum Badruddin, Abuzar Ghaffari, Hafiz Muhammad Ali
Summary: The study investigates the steady slip flow and heat transfer of tangent hyperbolic fluid over a lubricating surface of the stretchable rotatory disk, considering the effects of MHD, nonlinear radiation, and non-uniform heat source/sink subject to nonlinear boundary conditions. The results show that with enhanced slip at the interface and Weissenberg number, radial and azimuthal velocities increase near the disk, while the power-law index exhibits two different trends. Additionally, temperature rises with the radiation parameter, particularly prominently for nonlinear radiation.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Muhammad Ramzan, Saima Riasat, Yan Zhang, Kottakkaran Sooppy Nisar, Irfan Anjum Badruddin, N. Ameer Ahammad, Hassan Ali S. Ghazwani
Summary: This study investigates the impact of a low oscillating magnetic field on rotational viscosity through entropy generation analysis, as well as the effects of Hall current, Joule heating, and viscous dissipation on Ferro-nanofluid flow over a low oscillating stretchable rotating disk. The model transforms partial differential equations into ODEs and solves them using bvp4c MATLAB, presenting the influence of parameters on thermal and velocity profiles. The results show that increasing nanoparticle volume fraction and magnetization parameter lead to decreased radial and tangential velocity, while the thermal profile increases. Comparisons with existing literature show similar results for radial and axial velocity profiles.
SCIENTIFIC REPORTS
(2021)
Article
Physics, Applied
Ramesh Kune, S. Hari Singh Naik, Kottakkaran Sooppy Nisar
Summary: This paper investigates the influence of velocity slip and Newtonian heating on Williamson Nanofluid flow over a stretching sheet. The fluid flow equations are transformed into a system of coupled ordinary differential equations and solved numerically using the Keller-box approach. The results show that increasing the Williamson parameter leads to a decrease in fluid velocity due to the increase in viscosity velocity. The velocity slip parameter reduces the Nanofluid velocity while increasing shear stress, while the Newtonian heating parameter has rising functions for velocity and dimensionless temperature.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Polymer Science
Chuanwei Lu, Yupeng Liu, Xinyu Wang, Juan Yu, Yuzhi Xu, Chunpeng Wang, Jifu Wang, Qiang Yong, Fuxiang Chu
Summary: A cellulose reinforced thermoset elastomer with excellent recyclability and stretchability was designed and fabricated in this study, and the formation of its dynamic crosslinked network was demonstrated. Furthermore, the recyclable thermoset elastomer composite doping with CNT showed promising performance in photothermal conversion and Joule heating.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Physics, Multidisciplinary
Md Shamshuddin, Mohamed R. Eid
Summary: The study focused on heat transfer in water-based nanofluids containing ferromagnetic nanoparticles flowing between parallel stretchable spinning discs with variable viscosity influence and variable conductivity. A constructed mathematical model was utilized to analyze the problem, and numerical results were presented graphically for velocity and temperature distributions. Findings showed that stretching and spinning parameters affect boundary layers, while different nanofluids exhibit varying thermal conductivity strengths.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Physics, Applied
M. Irfan, Aamir Hamid, M. Khan, Aamir Nadeem, W. A. Khan, Nadeem Nasir
Summary: This study focuses on the thermal properties of Joule heating and thermal conductivity in magnetite Maxwell nanofluids. The results show that the Maxwell temperature field is influenced by Eckert number and variable conductivity factors. The concentration of the fluid affects the thermophoretic and Brownian motion factors.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Multidisciplinary Sciences
Khalid Fanoukh Al Oweidi, Faisal Shahzad, Wasim Jamshed, Usman, Rabha W. Ibrahim, El Sayed M. Tag El Din, Afrah M. AlDerea
Summary: This study determined the thermal properties of ternary nanofluids and investigated the effects of Hall current, thermal radiation, and heat dissipation on fluid flow.
SCIENTIFIC REPORTS
(2022)
Article
Computer Science, Interdisciplinary Applications
M. M. Khader, M. M. Babatin
Summary: In this paper, He's homotopy perturbation method (HPM) is used to solve the problem of Newtonian fluid flow past a porous exponentially stretching sheet with Joule heating and convective boundary condition. The obtained solutions for both the velocity and temperature field are found to be effective, convenient, and accurate, shedding light on the accuracy and efficiency of HPM in solving these types of nonlinear boundary layer equations.
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
(2022)
Article
Computer Science, Interdisciplinary Applications
Amr M. S. Mahdy, M. M. Babatin, M. M. Khader
Summary: In this study, an approximate analytical solution for the problem of non-Newtonian Casson fluid flow past a porous exponentially stretching sheet with Joule heating and convective boundary condition is obtained using He's homotopy perturbation method. The obtained solutions for both the velocity and temperature field are graphically presented, showing the method's effectiveness, convenience, and accuracy in dealing with systems of nonlinear equations.
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
(2022)
Article
Thermodynamics
Khadija Rafique, Zafar Mahmood, Umar Khan, Sayed M. Eldin, Mowffaq Oreijah, Kamel Guedri, Hamiden Abd El-Wahed Khalifa
Summary: In this study, the impact of various parameters on coolant applications was analyzed, and ternary hybrid nanoparticles were synthesized and investigated in water. The PDEs were converted into ODE system and numerically solved using the shooting technique and RKF scheme, showing consistent results with previous findings. By increasing the value of the magnetic parameter, the temperature profile decreases and the velocity increases, along with improvements in Nusselt number. Physical factors must be considered for an accurate prediction of flow and heating of Al2O3-Cu-TiO2/H2O.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Physics, Mathematical
Ayele Tulu
Summary: This study aims to investigate MHD micropolar nanofluid flow past a radially stretchable rotating disk using the Cattaneo-Christov non-Fourier heat and non-Fick mass flux model. The governing equations are transformed into dimensionless ODEs and solved using the SLLM method. The results reveal the influence of various parameters on flow fields and engineering quantities, showing that radial stretching improves the cooling process and microrotation viscosity affects the radial velocity profile and kinetic energy. The study is novel in considering microscopic effects and the effect of radial stretching on micropolar nanofluid flow.
ADVANCES IN MATHEMATICAL PHYSICS
(2023)
Article
Multidisciplinary Sciences
Abdul Rauf, Aqsa Mushtaq, Nehad Ali Shah, Thongchai Botmart
Summary: This study examines the flow and heat transfer of a ferrofluid over a flexible revolving disc under the influence of an alternating magnetic field. The results for hybrid nanofluid and power-law stretching are novel and consistent with earlier research findings. Heat transfer performance is improved with hybrid nanofluid, while velocity decreases with increasing stretching parameters in non-linear stretching conditions.
SCIENTIFIC REPORTS
(2022)
Article
Mathematics, Applied
Shahid Farooq, Muhammad Ijaz Khan, Faris Alzahrani, Aatef Hobiny
Summary: This study models the transportation of Al2O3 47nm and Al2O3 36nm nanoparticles through peristalsis using entropy optimization. The conservation laws for mass, momentum, and energy are applied to simulate the flow situation and various factors such as magnetohydrodynamics, thermal radiation, and heat generation are considered. The obtained numerical results are used to analyze the flow quantities for the influential parameters in the problem.
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS
(2023)
Article
Mathematics, Applied
Tie-Hong Zhao, M. Ijaz Khan, Yu-Ming Chu
Summary: Mixed convection is a heat transport mechanism in thermodynamic systems that involves the motion of fluid particles influenced by both gravity and external forces. This study focuses on the mixed convective flow of Ree-Eyring fluid between two rotating disks, considering the effects of porosity and velocity slip. The energy equation is modeled with various factors such as heat generation/absorption, dissipation, radiative heat flux, and Joule heating. The results obtained are compared with previous studies, showing good agreement. Interesting physical phenomena such as skin friction and heat transfer are also numerically calculated.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Thermodynamics
Fazal Haq, Muzher Saleem, M. Ijaz Khan, Sami Ullah Khan, Mohammed Jameel, Tian-Chuan Sun
Summary: The study focuses on the theoretical analysis of heat, mass, and motile microorganisms transfer rates in Casson fluid flow over a stretched permeable surface, considering the effects of buoyancy forces, magnetic field, and thermal radiation. The outcomes are effectively summarized in terms of closing remarks, comparing numerical data against essential engineering formulations.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
(2022)
Article
Engineering, Multidisciplinary
S. R. Mishra, Tian-Chuan Sun, B. C. Rout, M. Ijaz Khan, M. Kbiri Alaoui, Sami Ullah Khan
Summary: The research explores the thermal properties of nanoparticles in dusty nano-materials and their interaction with transverse magnetic fields on expanding surfaces. A mathematical model considers metal nano-materials (copper and silver) and conventional fluid water to solve complex nonlinear problems involving dust phase materials and fluid-transformed governing equations.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Computer Science, Interdisciplinary Applications
Yun-Jie Xu, Faisal Shah, M. Ijaz Khan, Naveen R. Kumar, Punith R. J. Gowda, B. C. Prasannakumara, M. Y. Malik, Sami Ullah Khan
Summary: This paper examines the influence of heat source/sink on boundary layer flow of a fourth-grade liquid over a stretchable Riga plate, considering induced magnetic field and mixed convection. The analysis of mass and heat transport is conducted using a modified Fourier heat flux model. The governing flow issue is demonstrated by applying momentum, energy, temperature, and concentration equations. The modeled equations are then reduced into nondimensional ODEs using suitable similarity transformations. The analytic solutions are obtained by employing the optimal technique of homotopy analysis. The influence of various nondimensional parameters on velocity, thermal, and concentration gradients is discussed using graphs, and the skin friction is also analyzed. The results show that the velocity of the fluid decreases with increasing values of the viscoelastic parameter and fourth-grade liquid parameter, but exhibits opposite behavior for the third grade fluid parameters. The fluid temperature increases with the thermal relaxation parameter, while the concentration decreases for higher values of the solutal concentration parameter and Schmidt number.
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
(2022)
Article
Engineering, Mechanical
Latif Ahmad, Saleem Javed, M. Ijaz Khan, M. Riaz Khan, Abd Allah A. Mousa, Safar M. Alghamdi, Ahmed M. Galal
Summary: The goal of this study is to investigate the flow, heat, and mass transfer of Walter's B nanofluid over a cylindrical disk in the presence of a non-uniform heat source/sink. Various factors such as unsteadiness, fluctuating thermal conductivity, activation energy, and binary chemically reactive species are considered. The problem is solved using non-linear partial differential equations transformed into ordinary differential equations. Interesting results are obtained, such as the increase in displacement thickness with infinite b and the reversed trend of displacement thickness with increasing viscoelastic parameter.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Mathematics, Applied
Yu-Ming Chu, B. M. Shankaralingappa, B. J. Gireesha, Faris Alzahrani, M. Ijaz Khan, Sami Ullah Khan
Summary: The current research focuses on nano-material suspensions and flow characteristics, particularly in terms of their applications in biomedical rheological models. This study analyzes the radiative flow of Maxwell nanoliquid on a stretching cylinder, taking into account magnetic effect, Stefan blowing, and bioconvection. The results provide insights into the behavior of dimensionless parameters on dimensionless velocity, concentration, and thermal profiles through graphical representations, with significant findings regarding velocity change, thermal and mass relaxation times, Brownian factor, and microorganism concentration.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Physics, Multidisciplinary
Zhang Jie, Hafiz Muhammad Asif Javed, M. Ijaz Khan, Muhammad Awais, Muhammad Sarfaraz, Wenxiu Que, Muhammad Salman Mustafa, Sami Ullah Khan, M. Riaz Khan, Ahmed M. Galal, Ashraf Y. Elnaggar, Mohamed Bakry Masod, Tao Naixin
Summary: The development of TiO2-rGO nanocomposite-based photoanode is an efficient way to enhance the power conversion efficiency of dye-sensitized solar cells. The synthesized nanocomposite shows higher efficiency than pure TiO2 nanoparticles-based photoanode in DSSCs.
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
(2022)
Article
Physics, Multidisciplinary
Bing Guo, Sohail A. Khan, M. Ijaz Khan, Essam Roshdy El-Zahar, M. Y. Malik, A. S. Alqahtani, Yu-Ming Chu
Summary: This study examines the entropy generation in the hydromagnetic flow of a time-dependent Darcy-Forchheimer nanoliquid over a stretched porous surface. The effects of various variables on temperature, fluid flow, and entropy rate are discussed. The study finds that higher porosity variables reduce the velocity profile, while the opposite effect is observed for entropy rate and velocity. A larger Brinkman number leads to an increase in entropy rate and temperature. The drag force and Nusselt number decrease with magnetic field. The thermal transport rate and drag force have opposite trends with the unsteadiness parameter.
WAVES IN RANDOM AND COMPLEX MEDIA
(2022)
Article
Physics, Multidisciplinary
Yinyin Wang, Ali Raza, Sami Ullah Khan, M. Ijaz Khan, Mohamed Ayadi, M. A. El-Shorbagy, Nawal A. Alshehri, Fuzhang Wang, M. Y. Malik
Summary: This article introduces a fractional model that analyzes and simulates the hybrid nanofluid problem with different nanoparticles, taking into account the blood base fluid. The study finds that the thermal increment of the hybrid nanofluid can be simulated by considering a magnetized moving surface and porous space. The model is made versatile by introducing velocity and thermal slip assumptions.
WAVES IN RANDOM AND COMPLEX MEDIA
(2022)
Correction
Chemistry, Physical
V. Puneeth, Rajeev Anandika, S. Manjunatha, M. Ijaz Khan, M. Imran Khan, Ali Althobaiti, Ahmed M. Galal
Summary: This paper investigates the chemically reacting rGO-Fe3O4-TiO2-H2O ternary nanofluid jet flow in the presence of bio-active mixers. A few typographical errors have been identified, but they have no impact on the obtained results.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Energy & Fuels
Fuzhang Wang, Sohail A. Khan, M. Ijaz Khan, Essam Roshdy El-Zahar, M. Yasir, Taher A. Nofal, M. Y. Malik
Summary: This article investigates the application of entropy optimized analysis in permeable media through thermodynamic analysis. Numerical solutions are used to discuss the effects of nanoparticles on entropy rate, temperature, Bejan number and velocity profile. The results show that porosity, radiation and Brinkman number have significant impacts on entropy and flow characteristics.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Crystallography
Hassan Waqas, Mowffaq Oreijah, Kamel Guedri, Sami Ullah Khan, Song Yang, Sumeira Yasmin, Muhammad Ijaz Khan, Omar T. Bafakeeh, El Sayed Mohamed Tag-ElDin, Ahmed M. Galal
Summary: This article presents a numerical and statistical analysis of a novel thermal radiation and exponential space-based heat source on the bioconvective flow of a pseudoplastic 3D nanofluid past a bidirectional stretched Riga surface. The results show that nanofluids are more efficient in heat transfer and the flow profiles are influenced by various flow control parameters.
Article
Chemistry, Analytical
S. S. Zafar, Ayman Alfaleh, A. Zaib, Farhan Ali, M. Faizan, Ahmed M. Abed, Samia Elattar, M. Ijaz Khan
Summary: Physiological systems and biological applications in the past 15 years heavily rely on microscale and nanoscale fluxes. Microchannels have been used for diagnostic assays, cell adhesion and molecular transport studies, and mimicking circulatory system flow. MHD boundary flow has wide applications in engineering and technology, including power generation, polymer industry, flow meters, pumps, and filament spinning. This investigation focuses on the Magnetohydrodynamic (MHD) flow of Prandtl nanofluid, involving mixed convection, energy activation, microorganism, and chemical reaction. The study presents numerical outcomes and graphs on velocity profile, temperature, mass concentration, and microorganism density, considering various parameters like Prandtl fluid parameter, elastic fluid parameter, magnetic field, mixed convection parameter, activation energy, chemical reaction, Brownian motion, thermophoretic force, Prandtl number, and Schmidt number. The results show that the Prandtl fluid parameter and elastic fluid parameter enhance the velocity profile, while the Prandtl fluid parameter reduces the thermal rate with increasing concentration profile. Activation energy exhibits the opposite trend. The obtained numerical outcomes are compared with existing statistics and show good agreement in limiting cases.
Article
Mathematics, Applied
M. Ijaz Khan, Sumaira Qayyum, Yu-Ming Chu, Seifedine Kadry
Summary: This article considers the Marangoni convective flow of nanofluid and entropy generation minimization. Equations are constructed for the Buongiorno model of nanofluid and the flow is generated by a rotating disk. The effects of activation energy, nonlinear mixed convection, and MHD are also taken into consideration. Ordinary differential equations are formed using appropriate variables and results are obtained using the Shooting method. The results of temperature, axial velocity, entropy, radial velocity, concentration, and Bejan number are discussed through graphs.
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS
(2023)
Article
Physics, Condensed Matter
A. Jbeli, N. Zeiri, N. Yahyaoui, P. Baser, M. Said
Summary: The electronic and optical properties of CdSe/ZnSe semiconductor core/shell quantum dots with hydrogenic donor impurity were investigated theoretically. The perturbation and variational methods were used to calculate the binding energy, photoionization cross-section, polarizability, and diamagnetic susceptibility of the excited impurity under various conditions. A significant stark shift in the binding energy was observed under the influence of an external electric field.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Rahat Batool, Tariq Mahmood, Sajid Mahmood, Abdul Aziz Bhatti
Summary: This study investigates the effects of alkali metal doping (Na, K, Cs) on MAPbI3 through compositional engineering. The results show that doping Na, K, and Cs can improve the phase stability, thermodynamic stability, and optical absorption of MAPbI3.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
N. A. N. M. Nor, M. A. H. Razali, W. H. A. W. K. Annuar, N. N. Alam, F. N. Sazman, N. H. M. Zaki, A. S. Kamisan, A. I. Kamisan, M. H. Samat, A. M. M. Ali, O. H. Hassan, B. U. Haq, M. Z. A. Yahya, M. F. M. Taib
Summary: This study investigates the potential of quaternary chalcogenides semiconductors as thin film solar cell absorbers using density functional theory (DFT) and density functional theory plus Hubbard U (DFT + U) approach. The results show that by applying Hubbard U terms, the electronic band gaps can be accurately predicted, providing valuable insights for finding cost-effective new thin film solar cell materials.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Ashwani Kumar, Anuj Kumar, Mohaseen S. Tamboli, Mohd Ubaidullah, J. Jayarubi, S. K. Tripathi
Summary: In this study, lead-based perovskite solar cells are replaced by bismuth-based perovskite cells to overcome their instability and toxicity. CsBi3I10 perovskite films are fabricated using a modified drop-casting process, and the effects of post-annealing temperature on the morphological, structural, and optical properties are investigated. The photovoltaic performance of the cells without a hole transport layer is also quantitatively evaluated.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yang Gao, Shu-Ming Chen, Shuo Cao, Shang-Zhou Zhang, Philippe Djemia, Qing-Miao Hu
Summary: This study investigates the phase stability, elastic modulus, and hardness of ternary nitride Ti1-xAlxN. It is found that the hardness increases with the Al content x. The cubic B1 structure is more stable for x < about 0.75, while the hexagonal structure (B4) is more stable for x > about 0.75. The composition dependent hardness and phase decomposition contribute to the convex shaped hardness curve of Ti1-xAlxN.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Fengqi Wang, Qinyan Ye, Xulin He, Kun Luo, Xiaolong Ran, Xingping Zheng, Cheng Liao, Ru Li
Summary: This report uses rigorous calculations based on density functional theory to study the piezoelectric and elastic properties of wurtzite aluminum nitride (w-AlN) with single- and co-alloying by Hf (or Zr) and Sc. The research finds that the (HfSc)0.375Al0.625N and (ZrSc)0.375Al0.625N with stable wurtzite phase have a large piezoelectric coefficient d33 of 49.18 pC/N and 47.00 pC/N, respectively. However, the piezoelectric voltage constant g33 and electromechanical coupling constant k233 of HfAlN, ZrAlN, HfScAlN, and ZrScAlN are smaller than that of ScAlN, which is attributed to the large dielectric constant epsilon 33 of Hf (or Zr) alloying samples. Furthermore, the calculations of internal parameter u and bond angle alpha elucidate the brittle-to-ductile transformation in alloying w-AlN crystal structure. Electronic structure calculations show that the bandgap decreases almost linearly with the increase of alloying concentration, and the Hf (or Zr) alloying compounds become n-type semiconductors due to the existing high-charge states.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
S. R. Athul, K. Arun, S. Swathi, U. D. Remya, Andrea Dzubinska, Marian Reiffers, Nagalakshmi Ramamoorthi
Summary: The magnetic and magnetocaloric characteristics of Ho6FeSb2 have been studied. The compound exhibits two second-order ferromagnetic transitions, enabling hysteresis-free magnetocaloric effect across a wide temperature range. The alloy has high relative cooling power and magnetoresistance, making it suitable for hysteresis-free magnetocaloric applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Reena Sharma, Neelam Hooda, Ashima Hooda, Satish Khasa
Summary: A polycrystalline double perovskite La2CoMnO6 sample was prepared and its structural, dielectric and magnetic properties were investigated. The sample exhibited complex structures and magnetic behavior, and showed good conductivity and dielectric performance. Its multi-domain magnetic structure suggests its suitability for memory device applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Shubha Dubey, Jisha A. Abraham, Kumud Dubey, Vineet Sahu, Anchit Modi, G. Pagare, N. K. Gaur
Summary: This study investigates the optoelectronic, thermodynamic, thermoelectric, and mechanical stability properties of RhTiP Half Heusler semiconductors. The results show that RhTiP is a non-magnetic material with confirmed mechanical stability. It is found to be an indirect-bandgap semiconductor with a good Seebeck coefficient. This study suggests that RhTiP has promising applications in the thermoelectric and optoelectronic fields.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Xun Xie, Jiong-Ju Hao, Hong-Wei Yang
Summary: This work presents a multilayer film structure that uses optical resonance to prepare highly efficient and saturated red, green, and blue transmittance colors. Numerical simulations and analysis show that the structure can produce R, G, and B colors with a purity comparable to standard RGB colors, while maintaining efficient transmission efficiency and obtaining a rich variety of structural colors. Additionally, a metallic interlayer is introduced to selectively suppress resonances in the short-wavelength region, improving the purity of the red color. The study also investigates the effect of the incidence angle on color purity and transmission efficiency.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yueqiang Zhao
Summary: Solubility property is of great interest in chemical, physical, pharmaceutical, material, and environmental sciences. Understanding the intrinsic reason behind solubility behavior is a fascinating task. The theoretical relation between binary mutual solubility and liquid-liquid interfacial tension has been derived, where the partitioning of solute molecules between two coexisting liquid phases is determined by the transfer free energy per unit segment for a chain-like solute molecule expressed in terms of solute-solvent interfacial tension. This general theory of solubility is in good agreement with experimental results for binary mutual solubility and molar transfer free energy of solute molecules.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Osama K. M. Bashiar, R. E. Kroon, H. C. Swart, R. A. Harris
Summary: ZnO thin films with near-infrared emission were successfully fabricated using pulsed laser deposition under vacuum conditions, without the need for additional gases or implantation methods. The NIR emission was hypothesized to be caused by defects in the ZnO film due to high energy particle impacts on the sample surface.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
O. Stognei, A. Berezutskii, I. Anisimov, A. Deryabin
Summary: The influence of ZrOn matrix stoichiometry on the electrical and magnetoresistive properties of Fe-Zr-O nanocomposites has been studied. It was found that the magnetoresistive effect is not observed in composites with oxygen lack, while composites with oxygen excess show magnetoresistive effect and increased resistivity. Magnetoresistivity in composites with oxygen lack only appears after heat treatment. These results can be explained by the difference in the density of localized states in the oxide matrix of the composites and the ratio between two types of conductivity.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Mehmet Bayirli, Aykut Ilgaz, Orhan Zeybek
Summary: The present study aims to understand the relationship between impedance characteristics and fractal behaviors. By producing neat and carbon nanotube doped composite specimens, the researchers investigated the electrical properties and surface heteromorphology using Nyquist plots and fractal analysis.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
M. I. Khan, Saddam Hussain, Muhamad Saleem, Fatimah Mohammed Alzahrani, Muhammad Siddique, M. S. Hassan, Allah Ditta Khalid, Munawar Iqbal
Summary: The sol-gel method was used to deposit Ti-doped MAPbBr3 films on FTO-glass substrates with different doping ratios (0%, 4%, and 6%). XRD analysis confirmed the cubic structure of all films, and the 4% Ti-doped film exhibited a large grain size, low band gap energy, and high refractive index. Solar cells fabricated using the 4% Ti-doped MAPbBr3 film showed improved performance in terms of current density, open circuit voltage, fill factor, and efficiency.
PHYSICA B-CONDENSED MATTER
(2024)