Article
Physics, Condensed Matter
Boucharef Mohamed, Abbes Boucheta, Chaker Yassine, Lakhdar Djoudi, Mostefa Merabet, Salaheddine Benalia, Rafik Belghit
Summary: This article demonstrates the impact of stacking periodicity on the structural, electrical, and magnetic properties of the (MnAs)n/(AlAs)n Superlattice. The results reveal that the lattice constant and total magnetic moment of the superlattices increase linearly with the number of layers. Different behaviors in terms of metallic and semi-metallic properties are observed for different compositions, and the magnetic moment of the superlattices originates from the d states of the Mn atom. This research suggests that controlling the number of MnAs layers can be used to engineer the magnetic properties of the MnAs/AlAs superlattice for spintronic device applications.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Benaissa Nour-eddine, F. Belkharroubi, I. Ameri, L. F. Blaha, Benaissa Abdelghani, Drici Lamia, M. Bourdim, A. Tebboune, M. N. Belkaid, M. Ameri, B. Fassi, S. Driz, Y. Al-Douri, A. F. Abd El-Rehim, A. Bouhemadou
Summary: First-principles calculations have been conducted to investigate the structural, elastic, electronic, and magnetic properties of full-Heusler alloys Ir2HfB, Ir2HfAl, and Ir2HfGa. The results show that these alloys have stable cubic AlCu2Mn-type structures in a ferromagnetic state and exhibit metallic behavior. Additionally, the consideration of strong electronic correlation improves the band gap width, resulting in half-metallic behavior for Ir2HfAl and Ir2HfGa alloys and near half-metallic behavior for Ir2HfB.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
S. Gagui, S. Ghemid, H. Meradji, B. Zaidi, S. A. Tahir, R. Ahmed, A. K. Kushwaha, B. Hadjoudja, B. Chouial
Summary: The study investigates the structural, elastic, mechanical, optoelectronic, and thermodynamic properties of InP1-xSbx alloys for different compositions, revealing their specific characteristics and suitability as candidate materials for optoelectronic applications in the infrared and visible regions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
H. A. Rahnamaye Aliabad, Maliheh Azadparvar, Behnam Mahdavi, R. Golestani, Muhammad Khalid, Z. Choopani
Summary: The optoelectronic properties of pyrazinamide (PZA) in a monoclinic crystal structure were studied using the FP-LAPW method. Two potentials, PBE-GGA and TB-mBJ, were applied for calculations. The obtained band gaps of PZA were 2.25 and 3.85 eV, and the effective masses of carriers were 0.301m0 and 0.117m0 along the G-M direction. The density of states spectra showed strong covalent bonds between N-C and O-C near the Fermi level. The anisotropic optical properties of PZA were analyzed and the maximum polarization was observed at 3.98 and 5.12 eV. The calculated absorption spectrum of PZA agreed well with experimental data, suggesting its potential for optoelectronic devices.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Sudharsan Balasubramanian, D. Shobana Priyanka, M. Srinivasan, P. Ramasamy
Summary: This study investigates the structural, electronic, magnetic, and thermodynamic properties of BiXO3 (X = Be, Ca, Mg, Na, K, Li) perovskite materials. The research findings suggest that these materials are stable in the ferromagnetic phase and exhibit half-metallic properties, making them suitable for spintronic applications.
SOLID STATE SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
N. Ben Bellil, F. Litimein, H. Khachai, R. Khenata, A. Abdiche, E. Guler, R. Ahmed, A. Bouhemadou, S. Bin Omran, Jamil M. Khalifeh
Summary: The study investigates the structural, optoelectronic, and thermodynamics properties of SnZrCH3 (CH = S, Se) compounds using the DFT method. The results indicate that both compounds are potential candidates for photovoltaic applications.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
D. Parajuli, K. Ramanjaneyulu, N. Murali, A. Ramakrishna, Khalid Mujasam Batoo, K. Samatha, V. Veeraiah
Summary: In this study, the DFT-FP-LAPW method was used to investigate the properties of BiMO3 (M = Al, Ga, and In). The structural, electronic, and optical properties were analyzed through energy band structure, density of states, and charge density calculations. The results showed that there is ionic bonding between Bi-O and a mixture of ionic and strong covalent bonds between M (Al, Ga, In)-O. These materials exhibit potential for applications in various devices such as memories, capacitors, and sensors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
M. Y. Raia, R. Masrour, A. Jabar, M. Hamedoun, A. Rezzouk, A. Hourmatallah, N. Benzakour, K. Bouslykhane, J. Kharbach
Summary: In this study, the structural, electronic, magnetic, optical, thermoelectric, and thermodynamic properties of Gd2Rh3Ge and Er2Rh3Ge compounds were investigated using density functional theory (DFT). The results revealed that these compounds exhibit metallic character, ferromagnetic behavior, and stability.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Z. Aboub, T. Seddik, B. Daoudi, A. Boukraa, Debidatta Behera, M. Batouche, Sanat Kumar Mukherjee
Summary: The study using FP-LAPW technique found interesting findings about the physical properties of doped SrTiO3 materials. The semiconducting behavior of La- and Ni-doped SrTiO3 alloys was explored through band structure calculations. The results showed that Sr0.945La0.055TiO3 exhibited n-type semiconducting behavior with a bandgap of approximately 2.924 eV, while Ni-doped SrTiO3 demonstrated a reduction in band gap value of around 1.337 eV due to the emergence of 3d-Ti states in the middle of the SrTiO3 band gap.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Y. Rached, M. Caid, D. Rached, H. Rached, N. Benkhettou
Summary: In this paper, the effect of monolayers on the properties of (GaSb)m/(InSb)n superlattices is investigated using Density Functional Theory calculations. The results show that the superlattices have a stable structure and a semiconductor nature with a direct bandgap. The optical properties calculations reveal a wide range of values, and the thermoelectric parameters suggest potential high-performance applications. Based on this research, (GaSb)m/(InSb)n superlattices are promising candidates for novel infrared detector devices.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Ouafaa Sadouki, Friha Khelfaoui, Fabien Fontaine-Vive, Keltouma Boudia, Hayat Hocine, Enis Sert, Ahmed Redha Benrekia, Mama Hamlat, Amel Slamani, Fadila Belkharroubi, Kadda Amara
Summary: This study investigates the properties of chalcogenide compound CuMg2InS4 using density functional theory simulation. It finds that CuMg2InS4 is a direct band gap semiconductor and analyzes its structural, mechanical, electronic, optical, and thermoelectric properties. The study shows that CuMg2InS4 is a thermoelectric material with low thermal conductivity and high power factor, and exhibits dynamical stability and piezoelectric behavior. These findings have significant practical applications in various fields.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Daniel J. Cutler, Marco Coletta, Mukesh K. Singh, Angelos B. Canaj, Laura J. McCormick, Simon J. Coles, Jurgen Schnack, Euan K. Brechin
Summary: The [Fe-8(III)] hexagonal bipyramid exhibits antiferromagnetic exchange between the two capping tetrahedral ions and the six ring octahedral ions resulting in a spin ground state of S = 10.
DALTON TRANSACTIONS
(2022)
Article
Electrochemistry
Madiha Makhdoom, Sikander Azamz, Abdul Waheed, Ambreen Kalsoom, Azhar Iqbal, Bakhtiar Ul Haq, S. S. Ahmad, Imran Zada, Sarzamin Khan
Summary: The research investigates the optoelectronic properties of Li3AlH6 using computational methods, revealing it as an electron semiconductor with an indirect band gap. This finding holds significance for the future development of hydrogen storage technologies.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
D. Oudrane, I Bourachid, H. Bouafia, B. Djebour, B. Sahli, B. Abidri, D. Rached
Summary: In this study, the structural, elastic, electronic, and optical properties of EuTiO3 perovskite were investigated using ab initio density functional calculations. It was found that EuTiO3 adopts an antiferromagnetic state and exhibits mechanical stability and ductility in its cubic perovskite structure. The material also shows semiconductor behavior with a direct band gap, making it suitable for photovoltaic applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Biochemistry & Molecular Biology
Messaoud Caid, Youcef Rached, Djamel Rached, Habib Rached
Summary: In this study, the stability, elastic, electronic and optical properties of double perovskite (DP) Cs2CuIrF6 were predicted. The electronic structure and optical properties were investigated to assess the suitability for device applications. The results showed that DP (Cs2CuIrF6) is stable in a cubic and nonmagnetic state. The compound exhibited semiconducting behavior with an electronic band gap of 0.72 eV (L-V-X-C). The optical properties, including dielectric function, reflectivity, refractive index, absorption coefficient, and optical conductivity, were also analyzed up to 13.00 eV. The studied material shows potential for optoelectronic applications.
JOURNAL OF MOLECULAR MODELING
(2023)
Article
Physics, Condensed Matter
Bishnu Prasad Belbase, Dhurba Raj Jaishi, Rajendra Prasad Adhikari, Madhav Prasad Ghimire
Summary: The electronic and optical properties of Ba2BiSbO6 and BaSrBiSbO6 double perovskites were investigated using density functional theory. The materials were found to be semiconducting with indirect band gaps of 1.68 eV and 1.67 eV, respectively, when considering spin-orbit coupling. The optical band gaps obtained from the imaginary part of dielectric constants were in good agreement with the electronic band gaps. These materials exhibit optical activity in the ultraviolet and visible regions, suggesting their potential as candidates for opto-electronic devices.
SOLID STATE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Peter E. Siegfried, Hari Bhandari, Jeanie Qi, Rojila Ghimire, Jayadeep Joshi, Zachary T. Messegee, Willie B. Beeson, Kai Liu, Madhav Prasad Ghimire, Yanliu Dang, Huairuo Zhang, Albert V. Davydov, Xiaoyan Tan, Patrick M. Vora, Igor I. Mazin, Nirmal J. Ghimire
Summary: By utilizing ab initio calculations and measurements of magnetic, thermal, and transport properties, it is demonstrated that orthorhombic CoTe2 is near ferromagnetism, which is suppressed by spin fluctuations. Calculations and transport measurements reveal the presence of nodal Dirac lines, making it a rare combination of proximity to quantum criticality and Dirac topology.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jyoti Pandey, Neetu Yadav, Priyanka Yadav, Shivangi Rao, Kashmira Malla, Poojan Koirala, Madhav Prasad Ghimire, Rajamani Nagarajan
Summary: The outcomes of hole and electron doping in Bi2YO4Cl by introducing Ca2+ and Zr4+ for Y3+ were examined. The introduction of holes caused oxidation of Bi3+ to Bi5+, resulting in a blueshift of the absorption edge. Electron doping led to the reduction of Bi(III) to Bi(0) and a decrease in the optical band gap.
INORGANIC CHEMISTRY
(2023)
Article
Physics, Applied
S. Laghzaoui, A. Fakhim Lamrani, R. Ahl Laamara, E. Maskar, Amel Laref, Mattipally Prasad, J. Sivakumar, D. P. Rai
Summary: By substituting Ti atom by Cr atom in Ca2TiMnO6 (CTMO) under uniaxial compressive strain along [001]-direction, the double perovskite oxide exhibits electronic, magneto-optical, and electronic transport properties. The compound Ca2CrMnO6 (CCMO) shows a half-metallic ferromagnetic nature due to hybridization between Cr-3d, Mn-3d and O-2p states. CCMO possesses a mediocre spin-down bandgap ( & SIM;2 eV) optimum for thermoelectricity and optoelectronics.
MODERN PHYSICS LETTERS B
(2023)
Article
Physics, Applied
S. G. Chigarev, L. A. Fomin, D. P. Rai, E. A. Vilkov, O. A. Byshevsky-Konopko, D. L. Zagorsky, I. M. Doludenko, A. I. Panas
Summary: This article discusses an experimental approach to studying the distribution of radiation energy in the THz range, generated by an electron flow passing through a magnetic junction between thermal and dynamic systems. The experimental results from a spin-injection emitter using a heterogeneous magnetic nanowire array confirmed the assumption of competition between thermal and dynamic radiation processes.
Article
Chemistry, Multidisciplinary
Yumnam Thakur Singh, Bhanu Chettri, Lalrin Kima, Zosiamliana Renthlei, Prasanta Kumar Patra, Mattipally Prasad, Juluru Sivakumar, Amel Laref, Madhav Prasad Ghimire, Dibya Prakash Rai
Summary: In this study, we systematically investigated the electronic, optical, and mechanical properties of a hydrogenated (6,0) single-walled carbon nanotube under applied uniaxial stress. The band gap of the nanotube significantly varied with stress, and a transition from indirect to direct band gap was observed under compressive stress. The strained nanotube also exhibited strong optical absorption in the infrared region and became a promising candidate for optoelectronic devices. Molecular dynamics simulation was used to study the elastic properties of the nanotube under stress.
Article
Chemistry, Multidisciplinary
Zosiamliana Renthlei, Mattipally Prasad, Juluru Sivakumar, Lalhriat Zuala, Lalrinthara Pachuau, Yengkhom Rangeela Devi, Ningthoujam Surajkumar Singh, Gulmurza Abdurakhmanov, Amel Laref, Dibya Prakash Rai
Summary: This paper investigates the changes in structural, electronic, and thermodynamic properties of glasslike Na2GeO3 under compressive isotropic pressure. The results reveal stable structural and electronic phase transitions at around 20 GPa, with an enhancement in optical properties due to the transition in electronic band gap. The thermodynamic properties analysis demonstrates that Na2GeO3 follows certain low and high temperature specific heat laws. The computation of the piezoelectric tensor suggests that Na2GeO3 exhibits significant electric responses under applied pressure, making it a potential material for future energy-efficient devices.
Article
Physics, Applied
E. Maskar, A. Fakhim Lamrani, M. Belaiche, Mountaser Es-Semyhy, M. Khuili, Mattipally Prasad, J. Sivakumar, Amel Laref, D. P. Rai
Summary: This research applies the Density Functional Theory (DFT) to investigate the properties of hexagonal halide perovskites CsGeX3 (X = I, Cl, and Br). The study reveals that these compounds possess excellent mechanical stability, optical properties, and thermoelectric performance, making them suitable for optoelectronic and thermoelectric applications.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Physics, Applied
Adil Es-Smairi, Nejma Fazoun, E. Maskar, Ibrahim Bziz, Ahmed Ouhammou, El Houssine Atmani, A. Laref, Samah Al-Qaisi, D. P. Rai
Summary: In this study, the structural and opto-electronic properties of CuO were investigated using the Wien2k code and density functional theory. The transport properties were extracted based on the optimized structural parameters and computed band energies. CuO exhibited an average transmittance of about 65% and an average reflectance of about 18% in the visible range. At low temperatures, carrier mobility limits the conductivity of CuO, whereas at high temperatures, carrier concentration dominates. CuO is a potential material for solar cell applications as an absorbent layer and antireflection coating.
MODERN PHYSICS LETTERS B
(2023)
Article
Physics, Applied
D. P. Rai, C. E. Ekuma
Summary: In this paper, the electronic and magnetic properties of MS2(M=Co, Ni) were investigated using first-principles calculations. The results show that the electronic and magnetic properties of Co1-xNixS2(0.0 <= x <= 1.0) alloy can be significantly tuned, and half-metallicity can be observed at intermediate doping concentrations. The study provides insights into the low-energy Hilbert space and highlights the role of the Fermi surface in controlling electron transport and explaining the anomalous electronic and magnetic behavior of Co1-xNixS2.
MODERN PHYSICS LETTERS B
(2023)
Article
Multidisciplinary Sciences
Lalengmawia Celestine, Renthlei Zosiamliana, Shivraj Gurung, Shalika Ram Bhandari, Amel Laref, Sherzod Abdullaev, Dibya Prakash Rai
Summary: By using density functional theory and molecular dynamics simulation, the properties of CsGeX3 (X = Cl, Br, and I) were investigated. Results showed that CsGeX3 has a direct bandgap and high piezoelectric response, suggesting its potential application in the field of green energy harvest.
ADVANCED THEORY AND SIMULATIONS
(2023)
Article
Chemistry, Physical
Gang Bahadur Acharya, Bishnu Prasad Belbase, Madhav Prasad Ghimire
Summary: Recent research focuses on the electronic structure of kagome materials, and Cs2Ni3S4 is found to be a nonmagnetic semiconductor with a certain band gap. The material exhibits optical activity in the visible and lower ultraviolet energy ranges, making it a potential candidate for optoelectronic devices. Additionally, the effects of vacancy defects on the electronic and magnetic properties of Cs2Ni3S4 were investigated.
ELECTRONIC STRUCTURE
(2023)
Article
Materials Science, Multidisciplinary
Lalrinkima, S. M. Kastuar, L. Zadeng, R. Zosiamliana, B. Chettri, Y. T. Singh, L. Zuala, D. P. Rai, C. E. Ekuma
Summary: In recent years, there has been strong research interest in magnetic tunnel junctions (MTJs) for their potential use in nonvolatile memory technologies. Half-metallic materials have been proposed as ideal electrode materials for MTJs to achieve large tunnel magnetoresistance (TMR) effects. The results of our study demonstrate a high zero-bias voltage TMR ratio in a spin-filter MTJ consisting of a ferrimagnetic inverse Heusler alloy and CaS as the insulating tunnel barrier. Despite the oscillatory TMR under bias voltage, the spin injection remains high and stable, highlighting the practical applications of sf-MTJs formed by Mn2CoSi electrodes.
Article
Physics, Multidisciplinary
E. Maskar, A. Fakhim Lamrani, M. Belaiche, A. Es-Smairi, A. Laref, M. Prasad, J. Sivakumar, D. P. Rai
Summary: In this study, the mechanical stability and optical properties of transparent conducting halide perovskite materials were investigated using first-principles calculations. The results suggest that these materials have potential applications in photovoltaics and optoelectronic devices.
INDIAN JOURNAL OF PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Bibhutibhusan Nayak, S. Narayana Jammalamadaka
Summary: This article presents a method for remote detection of bovine serum albumin (BSA) using modified cantilever beam magnetometry (CBM). By combining a magnetostrictive Fe70Ga30 cantilever with optical detection technique, researchers were able to detect high concentrations of BSA remotely. The results of this study demonstrate the potential of this method in estimating the magnetostriction of thin films.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yu Hao, R. E. Camley, Z. Celinski
Summary: Magnetic particles have various applications and their magnetic state is determined by their size and the strength of an applied magnetic field. Numerical simulations were performed to study the effect of an applied field on the critical size of single-domain magnetic particles, and the critical field at which a particle becomes single-domain was determined.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Nitesh Singh, Naresh Kumar, Dharohar Sahadot, Anil Annadi, Vidyadhar Singh, Murtaza Bohra
Summary: The unique magnetic properties of FM/AFM and hard-FM/soft-FM nanocomposite thin films have significant relevance for numerous applications. The composition and performance of different magnetic phases in the nanocomposite films can be significantly affected by the laser ablation conditions and annealing temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alya Ali Musaed, Samir Salem Al-Bawri, Khaled Aljaloud, Wazie M. Abdulkawi, Mohammad Tariqul Islam, Mandeep Jit Singh, Zaini Sakawi, Husam Hamid Ibrahim
Summary: This research presents a wideband tunable metamaterial for body-centric applications in the millimeter-wave frequency band. The proposed metamaterial has a wide operating frequency range and enhanced gain, making it suitable for improving the antenna performance in 5G wireless communication systems.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Binod K. Rai, Boris Maiorov, Krzysztof Gofryk, Patrick O'Rourke, Catherine Housley, Henry Ajo, Asraf Sawon, Arjun K. Pathak, Narayan Poudel, Qiang Zhang, Travis J. Williams, Matthias Frontzek
Summary: This manuscript reports on the structural and magnetic properties of NdCuGa3. The study confirmed the crystal structure and magnetic phase transition of NdCuGa3 using XRD, neutron diffraction, magnetization, and specific heat measurements. The neutron diffraction data further confirmed the antiferromagnetic phase of NdCuGa3.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Haonan Li, Cong Li, Hailiang Huang, Guodong Hao, Fei Wang
Summary: The electronic structure and ferroelectric-ferromagnetic coupling properties of Y-doped and vacancy-containing GaN-ZnO heterojunctions are systematically investigated. The magnetism in vacancy-containing systems is generated by the spin polarization of unpaired electrons induced by cationic vacancies, while in Y-doped systems, bound magnetic polarons are formed by the orbital hybridization of s-state and d-state electrons of Y-doped elements.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Muhammad Ijaz, Hafeez Ullah, Bandar Ali Al-Asbahi, Mati Ullah Khan, Zaheer Abbas, Sana Ullah Asif
Summary: M-type BaFe11.4-xAlxCo0.6O19 hexaferrites with Al3+ substitutions were synthesized using the co-precipitation method followed by Sonochemical process. The synthesized materials were characterized using XRD, FTIR, UV-vis spectroscopy, VSM, SEM, and LCR meter. The results showed that aluminum doping decreased the band gap and enhanced the magnetic and dielectric properties of the hexaferrites, making them suitable for various applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg I. Utesov
Summary: The elementary excitations spectrum of anisotropic frustrated antiferromagnets in the fan phase is discussed. It is found that the low-energy part of the spectrum consists of a gapless phason branch with linear dispersion and a gapped optical branch corresponding to the fan structure amplitude oscillations. In the high-energy part of the spectrum, the excitations are similar to the magnons of the fully polarized phase.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alexander Ya. Simonovskii, Alexander A. Yanovskii, Arthur R. Zakinyan
Summary: In this study, the departure frequency of vapor bubbles during boiling of ferrofluid in a horizontal magnetic field is experimentally investigated. Two methods, visual and inductive, are used to measure the frequency of bubble departure. The results show that the bubble departure frequency can decrease with increasing magnetic field strength and increase with increasing temperature of the heat-emitting surface. A linear stability analysis is conducted to analyze the influence of the magnetic field on the frequency of bubble formation during ferrofluid boiling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg Heczko, Michal Rames, Vit Kopecky, Petr Vertat, Michal Varga, Ladislav Straka
Summary: Heusler Ni-Mn-Ga alloys are multiferroic materials that exhibit magnetic shape memory (MSM) phenomena. By doping transition elements into Ni2MnGa alloys, the transformation temperatures can be modified and complex behaviors can be observed, such as the variation in saturation magnetization and the effects of elemental substitution on compound properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Carlos Ariel Samudio Perez, Ariel Flaig de Marchi
Summary: This study investigates the electronic and magnetic properties of the Full-Heusler Fe2MnAs alloy using first-principles calculations. The alloy may form spontaneously and exhibits a ferromagnetic order and high spin-polarization. It can be transformed into a half-metal by contracting the lattice constant. Additionally, certain defects contribute to the spin-polarization of the alloy, making it a fully half-metallic material.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Satish Geeri, Aditya Kolakoti, Prasadarao Bobbili
Summary: In this study, an electromagnetic wave-absorbing material was fabricated using a polymer composite material with fiber orientation and Multiwall Carbon Nanotubes as filler materials, along with a Perfect Electric Conducting material. The experiments demonstrated strong electromagnetic absorbing properties for the composites with PEC-coated and non-PEC-coated materials. Mechanical, thermal, and morphological analysis confirmed the similar trend in properties. CRITIC analysis helped identify the sequence order of sustaining properties for the fabricated composites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yankai Chen, Ruoxue Zhang, Yukai An
Summary: The piezoelectricity, valley character, and magnetic properties of 2H-VS2 monolayer were studied, revealing its potential applications in spintronics and valleytronics due to its bipolar magnetic semiconductor characteristics and superior physical properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Leonardo S. Lima
Summary: This study investigates the thermodynamic quantities, such as entropy, specific heat, and magnetic susceptibility, in the next-nearest-neighbors Heisenberg model on a honeycomb-kagome lattice. The linear spin-wave approach is applied to obtain the temperature-dependent behavior of these quantities. Additionally, the entanglement negativity, a quantifier of quantum entanglement, and the spin Hall conductivity are also studied. The results show that all the thermodynamic quantities, as well as the entanglement negativity and spin Hall conductivity, exhibit an increasing trend with temperature. Furthermore, it is found that all the analyzed quantities approach zero in the low-temperature limit, consistent with experimental observations.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxing Wang, Maximilian Kai Reimann, Wang Chen, Yikun Zhang, Rainer Poettgen
Summary: The Mo2FeB2-type compounds RE2Ga2Mg (RE = Tm, Er, Ho) exhibit a large magnetocaloric effect, making them promising for cryogenic magnetic cooling applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
