Article
Engineering, Electrical & Electronic
Gulshan Dhillon, Naveen Kumar, Mansi Chitkara, Inderjeet Singh Sandhu
Summary: The study investigated the physicochemical characteristics of Gd3+ modified Fe3O4 nanoparticles synthesized via the sol-gel combustion method, including structural, microstructural, optical, electrical, and magnetic characteristics. The results showed that an increase in Gd3+ content led to an increase in average crystallite size, while the spectra at Fe-O stretching confirmed the formation of ferrite nanoparticles.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Mina Samieemehr, Ali Arab, Esmail Kiani
Summary: MnZnNi ferrite nanoparticles were synthesized using co-precipitation method and then used to form ring-shaped cores through two-step sintering. Reducing the sintering temperature resulted in increased sample density and decreased grain size. The two-step sintering process proved to be an effective method for producing ferrites with high density, permeability, and low losses.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Martin Ochmann, Vlastimil Vrba, Josef Kopp, Tomas Ingr, Ondrej Malina, Libor Machala
Summary: Two series of ZnFe2O4 mixed cubic spinel nanoparticles were prepared using coprecipitation method and microwave radiation. The effect of microwave heating on the properties of the particles, including structure, magnetism, and particle size, was investigated. The results showed that microwave heating had a significant effect on the mean coherent length of the particles, while it had a lesser influence on the size and BET surface area.
Article
Materials Science, Multidisciplinary
Deepali D. Andhare, Supriya R. Patade, Swapnil A. Jadhav, Sandeep B. Somvanshi, K. M. Jadhav
Summary: The synthesis and properties of Zn2+-substituted cobalt ferrites were investigated, including changes in physical and chemical properties, structural features, and magnetic behavior. Analysis using various techniques revealed the impact of Zn2+ doping on the characteristics of the cobalt ferrite material.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Green & Sustainable Science & Technology
Huimin Tang, Zhiwei Peng, Liancheng Wang, Anton Anzulevich, Mingjun Rao, Guanghui Li
Summary: This study explores the direct conversion of electric arc furnace (EAF) dust into zinc ferrite through roasting with a small amount of Fe2O3, focusing on the influence of roasting temperature on zinc conversion, phase transformation, microstructural evolution, and product magnetic property. The results show that zinc compounds in the dust react with iron components to form zinc ferrite at temperatures up to 1000°C due to favorable thermodynamics and high iron content. However, at temperatures above 1000°C, zinc conversion decreases due to the formation of zinc-containing impurity phases and the volatilization of zinc. After roasting at the optimal temperature of 1000°C for 2 hours, 94.13% of total zinc exists as insoluble zinc in the product, which exhibits good magnetic properties and can be used as a precursor for high-quality ferrite powders.
JOURNAL OF SUSTAINABLE METALLURGY
(2023)
Article
Materials Science, Ceramics
Sayed Reza Mortazavi, Fathallah Karimzadeh, Rahmatallah Emadi, Hossein Ahmadvand
Summary: The study investigated the changes in properties of glass-ceramic materials containing zinc ferrite nanocrystals after heat treatment at different temperatures, revealing the formation of glass-ceramics containing zinc ferrite nanocrystals at 700 degrees Celsius, and enhanced magnetic properties at 850 and 1050 degrees Celsius with gradual replacement of nanoparticles by micron-sized particles.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Riyatun, Triana Kusumaningsih, Agus Supriyanto, Budi Purnama
Summary: Silver-substituted cobalt ferrite (Ag0.02Co0.98Fe2O4) nanoparticles were sensitized through coprecipitation method. Increasing annealing temperature resulted in larger crystallite size and grain size. The redistribution of cations led to a perfect spinel structure. Higher annealing temperature led to increased saturation magnetization and coercive field. The antibacterial properties of Ag0.02Co0.98Fe2O4 were demonstrated through evaluation on S. aureus and E. coli, with the most significant effects observed at annealing temperature of 200 degrees C.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Multidisciplinary
Ali Mohammad Amani, Peyman Danaie, Ahmad Vaez, Razieh Gholizadeh, Tahereh Firuzyar, Fatemehsadat Dehghani, Sareh Mosleh-Shirazi
Summary: Superparamagnetic zinc ferrite nanoparticles with an average diameter of 20-30 nm were successfully biosynthesized in this study. The nanoparticles exhibited superparamagnetic properties and showed potential applications in biomedical fields. The experimental results were consistent with the theoretical calculations.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Crystallography
Mohamed S. A. Darwish
Summary: This study fabricated a series of photocatalysts based on magnetic ferrite nanostructures using a two-step co-precipitation technique. The fabricated magnetic photocatalysts were characterized using various methods. The results showed that MNPs exhibited outstanding performance as magnetic photocatalysts for the water-splitting process.
Article
Materials Science, Ceramics
Ala Manohar, Krishnamoorthi Chintagumpala, Ki Hyeon Kim
Summary: The synthesis of high-quality, narrow size distributed Zn1-xNixFe2O4 nanoparticles with increased saturation mass magnetization has been achieved in this study, suitable for localized superparamagnetic hyperthermia and photocatalysis applications. The samples exhibited good colloidal stability and higher specific heat generation rates, with enhanced photocatalytic efficiency as Ni2+ concentration increased.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Yong Sun, Xia Deng, Yan Zong, Xinghua Li, Junwei Zhang, Juan Feng, Xiao Chi, Zhenhua Shi, Xinliang Zheng, Yong Peng
Summary: Monodisperse nonstoichiometric zinc ferrite nanoparticles were synthesized with tunable sizes, revealing a transition from superparamagnetism to ferromagnetism as particle size increased due to the influence of oxygen vacancies. The presence of extrinsic impurity phases and the reduction of spin magnetic moments were observed, providing new insights into the magnetic properties of spinel ferrites.
SCIENCE CHINA-MATERIALS
(2021)
Article
Chemistry, Physical
Moustafa A. Darwish, Marwa M. Hussein, Samia A. Saafan, Walaa Abd-Elaziem, Di Zhou, Maksim V. Silibin, Sergei V. Trukhanov, Nikita V. Abmiotka, M. I. Sayyed, Daria I. Tishkevich, Alex V. Trukhanov
Summary: The research focuses on creating Mg(1_x)Zn(x)Fe(2)O(4) nanoparticles using the citrate precursor method. Structural properties were analyzed using XRD and SEM. The magnetic properties were investigated using VSM. The introduction of zinc increased the magnetization of B-sites while decreasing the magnetization of A-sites, resulting in an overall increase in sample magnetization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Jiali Song, Yu Gao, Guoguo Tan, Qikui Man, Zhi Wang
Summary: In this study, spinel Ni-Zn ferrites with excellent microwave absorption properties were synthesized and their absorption characteristics and interaction mechanisms were investigated. The results showed that S-NZFO had a wide effective absorption bandwidth and high saturation magnetization, while H-NZFO had small particle size and high complex permittivity. Both materials demonstrated potential as efficient microwave absorbers in military and civilian applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
K. D. Martinson, V. E. Belyak, D. D. Sakhno, A. A. Ivanov, L. A. Lebedev, L. A. Nefedova, I. B. Panteleev, V. I. Popkov
Summary: A solution-combustion-assisted approach was proposed and realized for the successful production of ultra-magnetically soft LiZnTiMn-ferrite ceramics with advanced electromagnetic performance. The study examined the microstructure and magnetic properties of the ceramics, revealing the impact of initial reagents on the morphological and structural parameters of the pre-ceramic powders. The developed ceramic materials show potential for modern radio-electronic devices in both civil and military applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Crystallography
Hector A. Chinchay-Espino, Gina M. Montes-Albino, Carlex M. Morales-Cruz, Segundo E. Dobbertin-Sanchez, Segundo Rojas-Flores
Summary: The effect of Co substitution on the structural and magnetic properties of BiFeO3 was studied, and Co-BiFeO3 nanopowders were successfully synthesized via the sol-gel method, exhibiting ferromagnetic properties at 15% Co doping.
Article
Chemistry, Multidisciplinary
P. Heidari, S. M. Masoudpanah
Summary: Single-phase magnesium-calcium ferrite powders were prepared by solution combustion synthesis method. Addition of Ca2+ improved the magnetic properties and decreased particle size, but reduced the light absorption capability, resulting in a lower photodegradation rate.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Ceramics
A. Tayebi Pak, S. M. Masoudpanah, M. Adeli, C. K. Ong
Summary: Fe3-xZnxO4 powders with different Zn2+ substitution were synthesized via a combustion method. The increase of Zn2+ content led to decreased particle size, increased pore amount, and different variations in saturation magnetization and reflection loss.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
F. Hosseini Mohammadabadi, S. M. Masoudpanah, S. Alamolhoda, H. R. Koohdar
Summary: In this study, (MnNiCu)(0-9-x)CoxZn0.1Fe2O4/graphene composite powders were prepared by onepot solution combustion synthesis method and analyzed using various characterization techniques. The results showed that Co substitution had minimal effect on saturation magnetization but led to an increase in coercivity. The addition of graphene increased the effective bandwidth for microwave absorption, although it resulted in a decrease in maximum absorption in some cases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
M. Derakhshani, E. Taheri-Nassaj, M. Jazirehpour, S. M. Masoudpanah
Summary: Hierarchical porous NiZn ferrite powders with tunable microstructure and properties were prepared using metal nitrates as oxidants and glycine as fuel. The addition of glycine affected the formation of FeNi3 phase and led to increased magnetization, permittivity, and permeability. The powders exhibited high microwave absorption performance with reflection loss of -48 dB in Ku band at a specific fuel to metal nitrates ratio.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
M. Derakhshani, E. Taheri-Nassaj, M. Jazirehpour, S. M. Masoudpanah
Summary: Nickel-zinc ferrite ceramic foam was successfully fabricated as a low-density electromagnetic wave absorber, showing excellent absorption performance with 99% attenuation of electromagnetic waves and minimal reflection losses. The study utilized a variety of modern characterization techniques to analyze the structural, morphological, magnetic, and electromagnetic properties of the samples.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
A. Sarmadi, S. M. Masoudpanah, S. Alamolhoda
Summary: LiFePO4/C powders were synthesized using L-Lysine as a surfactant to control particle size and shape, with increasing L-Lysine content resulting in changes in morphology and performance. The LiFePO4/C powder obtained with 50 mmol L-Lysine exhibited the highest specific capacity and good cycling stability, attributed to low antisite defects and unique morphology. High rate capability was also observed due to the small spherical particles and hollow-like structure of the LiFePO4/C powders, leading to enhanced electrochemical kinetics.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
M. Rahmati, S. M. Masoudpanah, S. Alamolhoda, J. Barqi
Summary: A facile combustion method was used to prepare FeNi3/NiFe2O4 composite powders, and the effects of fuel contents and combustion conditions on the properties were investigated. The results showed that the increase of fuel contents led to higher crystallinity and amount of FeNi3 phase, resulting in improved magnetic properties. The prepared powders exhibited excellent electrochemical performance and high specific capacitance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
S. Zarei, M. Hasheminiasari, S. M. Masoudpanah, J. Javadpour
Summary: ZnO-xSnO(2) composite films were prepared by sol-gel spin coating process and characterized. The films showed distinct microstructure with ZnO pyramids on SnO2 nanoparticles. The ZnO-25 mol% SnO2 film exhibited higher photocatalytic degradation of methylene blue dye compared to pristine ZnO and SnO2 films.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
F. Hosseini Mohammadabadi, S. M. Masoudpanah, S. Alamolhoda, H. R. Koohdar
Summary: (CoNiCuZn)(1-x)MnxFe(2)O(4) ferrite powders were prepared by the solution combustion method with different Mn contents for electromagnetic wave absorption. The effects of Mn contents on the structure, microstructure, and magnetic and microwave absorption properties were studied.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
O. Esmaeilzadeh, A. R. Eivani, M. Mehdizade, S. M. A. Boutorabi, S. M. Masoudpanah
Summary: In this study, WE43-based nanocomposites were fabricated by adding nano- and micro-sized particles and using friction stir processing. The effect of particle size and geometry of particle insertions on the microstructure and corrosion properties of Mg-based composites was investigated. The results showed that the grain size of the composite matrix was reduced after friction stir processing, and there was a significant fragmentation and redistribution of secondary phase particles. The corrosion behavior of the composite was evaluated using various tests, and it was found that the corrosion mechanism involved both pitting and uniform corrosion. Furthermore, friction stir processing and addition of particles reduced the rate of electrochemical corrosive reactions. The composite fabricated with hole insertion and nano-sized particles exhibited a more uniform distribution of additives and higher corrosion resistance compared to the groove insertion method. Additionally, the composite sample with Cu/ZnO particles showed the highest anti-corrosion properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
S. Golchinvafa, S. M. Masoudpanah, S. Alamolhoda
Summary: FeNi3/NiZnFe2O4/ZnO composite powders were in-situ prepared for microwave absorption. The effects of fuel content and composition on the structural, microstructural, and magnetic and microwave absorption properties were studied.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
S. M. Masoudpanah
Summary: Rod-like NiCo2O4 powders were synthesized using hydrothermal method and their structure and morphology were modified by adding PVP surfactant. The NiCo2O4 powders fabricated with PVP agent exhibited higher crystallinity and oxygen vacancies, resulting in improved microwave absorption performance. These findings are significant for the development of materials with efficient microwave absorption properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
S. M. Masoudpanah
Summary: Zinc and manganese spinel cobaltites were prepared by hydrothermal method using oxalic acid as precipitant. The structural, microstructural, and magnetic and microwave absorption properties were analyzed. The ZnCo2O4 nanoparticles were arranged as lamellar-like morphology, while the MnCo2O4 powders were composed of the large octahedral particles. The ZnCo2O4 powders showed higher magnetization and better microwave absorption performances.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
S. Khanahmadi, S. M. Masoudpanah
Summary: NiCo/(Ni,Co)O/(Ni,Co)Fe2O4 composites were prepared in-situ by solution combustion method. The presence of Ni(1-x)Co(x) phase instead of pure Ni and Co phases was confirmed by magnetic properties. The combusted composites exhibited spongy microstructure without any special morphology for various phases.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
S. Golchinvafa, S. M. Masoudpanah, S. Alamolhoda
Summary: The magnetic (Ni1-xZnxFe2O4/FeNi3 (x = 0.5 and 0.7))/dielectric (ZnO) composites were designed and in-situ prepared as microwave absorbers. By varying the fuel contents and composition (x), the crystallized ZnO phase in the composites was adjusted from 0 to 54 wt % to tune the dielectric and magnetic properties. The composite with amorphous ZnO phase exhibited excellent microwave absorption performance, with a minimum reflection loss of -40 dB and effective absorption bandwidth of 3.4, 4, 3.8, and 1.8 GHz in Ku, X, C2, and C1 bands at specific matching thicknesses.
CERAMICS INTERNATIONAL
(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)
