Article
Green & Sustainable Science & Technology
A. Ashok, T. Ratnaji, L. John Kennedy, J. Judith Vijaya, R. Gnana Pragash
Summary: The study developed a magnetically recoverable magnesium substituted zinc ferrite nanocatalyst for producing biodiesel from waste cooking oil. The catalyst, synthesized through a microwave assisted combustion process, exhibited high magnetic moment and saturation magnetization properties for efficient magnetic separation and achieving high biodiesel conversion rates.
Article
Materials Science, Ceramics
Miguel Angel Cobos, Patricia de la Presa, Ines Puente-Orench, Irene Llorente, Irene Morales, Asuncion Garcia-Escorial, Antonio Hernando, Jose Antonio Jimenez
Summary: Samples with different inversion parameter values were prepared through mechanical grinding and thermal annealing treatments, and characterized by X-ray, neutron diffraction, and magnetic measurements. The coexistence of short range antiferromagnetic and ferrimagnetic ordering at low temperature was confirmed for the first time, and a different magnetic phase diagram from previous reports was obtained.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Pavel Grudinsky, Denis Pankratov, Dmitry Kovalev, Darya Grigoreva, Valery Dyubanov
Summary: The study comprehensively investigated the composition of Zinc plant residue (ZPR) and the obtained products using various methods, elucidated the mechanism of sulfating roasting, and estimated the rate-controlling step of zinc and copper sulfation process. The results showed that the optimal condition for recovery of 99% Zn and 80.3% Cu is sulfating roasting at 600 degrees C for 180 min with the Fe-2(SO4)(3)center dot 9H(2)O addition, followed by water leaching, while Fe, Pb, Ag, In, Ga retained almost fully in the residue.
Article
Engineering, Electrical & Electronic
Jacob George, K. E. Abraham
Summary: The article discussed the synthesis, characterization, and gas-sensing studies of Cu1-xMxFe2O4 doped with Ni and Zn, aiming to improve stability and sensitivity for gas sensing applications. Doping of nickel or zinc was found to enhance the response properties of copper ferrite towards carbon monoxide and methane gases, showing promising results. Doped samples showed reduced particle size and increased specific surface area compared to pure copper ferrite, with nickel doping demonstrating faster response and recovery times.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Thermodynamics
Evgeniy V. Nikolaev, Elena N. Lysenko, Anatoly P. Surzhikov, Alexander L. Astafyev
Summary: The effect of mechanical activation of the Fe2O3-Co3O4-ZnO reagents on the thermal synthesis of cobalt-zinc ferrite was investigated. It was found that mechanical pre-activation facilitated the formation of the desired ferrite phase.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
Jorge Luis Coleti, Gabriel Valerio Pereira Manfredi, Eduardo Junca, Felipe Fardin Grillo, Jose Roberto de Oliveira, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenorio
Summary: This study characterized electric arc furnace dust (EAFD) and investigated the kinetic parameters of self-reducing briquettes made with EAFD and different charcoals. The results showed that EAFD mainly contained iron and zinc. The reduction of self-reducing briquettes occurred in two steps, with the first step controlled by the phase boundary and the second step controlled by diffusion.
Article
Chemistry, Applied
Yang Gao, Mingshan Wang, Hao Wang, Xinpeng Li, Yuanwei Chu, Zhicheng Tang, Yuanlong Feng, Jiaqi Wang, Yong Pan, Zhiyuan Ma, Zhenliang Yang, Dan Zhou, Xing Li
Summary: An organic small molecule additive, zinc formate, is used to construct a stable zinc metal interphase through electrochemical kinetic control and thermodynamic adjustment. It forms a water-formate concomitant dipole layer at the internal Helmholtz electrical double layers (HEDLs) and regulates the solvation sheath structure of Zn2+ in HEDLs, resulting in improved kinetics and stability. The strategy of interphase engineering by organic small molecules offers new possibilities for high-performance aqueous zinc-ion batteries.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ao Chen, Yaqin Zhang, Qing Li, Guojing Liang, Shuo Yang, Zhaodong Huang, Qi Yang, Hong Hu, Xinliang Li, Ze Chen, Jun Fan, Chunyi Zhi
Summary: The low-cost and high safety of zinc batteries have attracted attention, but the operating voltages are usually low. Hybrid batteries using H+ as the charge carrier can achieve high operating voltage and performance. However, it is difficult to prepare alkaline zinc-based hybrid batteries with high performance. The development of a unique phase-separation electrolyte (PSE) can boost the voltage and prevent zinc dendrite growth. Zinc/lithium hybrid batteries with LiMn2O4 cathodes show excellent cycle performance. A full cell with a high voltage and capacity is also achieved.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Applied
Iuliana Spiridon, Irina Apostol, Narcis Catalin Anghel, Mirela Fernanda Zaltariov
Summary: This study focuses on the development of new eco-friendly materials based on xanthan gum and cobalt ferrite nanoparticles with adsorptive properties. The water uptake capacity of the materials is influenced by pH and materials' composition. Materials containing cobalt ferrite showed high dye removal percentage. The adsorption data can be well fitted to Langmuir and Dubinin-Radushkevich isotherm models. The adsorption kinetics of Methyl Blue is a spontaneous endothermic process, while the retention of Basic Fuchsine is an exothermic reaction.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Editorial Material
Chemistry, Physical
Pawel E. Tomaszewski
Summary: The comment highlights a significant error in the crystallographic part of the paper, pointing out the correct crystal type and chemical formula as Bi25FeO39:Ni,Ti. Due to doping, the sample was found to contain two slightly different phases of the sillenite type.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Editorial Material
Chemistry, Physical
Pawel E. Tomaszewski
Summary: The comments highlight a severe error in the crystallographic part of the commented paper, indicating that the studied crystal is of the sillenite type and the correct formula should be Bi25FeO39:Cd,Ti. A new type of unit cell, previously unknown, was proposed for such crystals due to double doping.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Tingrui Xu, Xuejiao Li, Na Li, Mengmeng Liu, Feng Wang, Zhongfeng Tang
Summary: In this study, first principle molecular dynamics (FPMD) simulations coupled with experimental measurements were used to investigate the thermophysical parameters, microstructures, and thermal transport properties of the MgCl2-KCl eutectic salt. The phase transition behaviors and coordination structure changes were characterized through FPMD simulations and compared with experimental results. The study also revealed the characteristics of peak heights in the static structural factors and the dominating effect of Mg-Mg correlation on pre-peaks. The calculated thermal conductivity and shear viscosity of the molten eutectic were slightly lower than the experimental values based on ionic self-diffusion coefficients.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Environmental
Tooba Saeed, Abdul Naeem, Tahira Mahmood, Afsar Khan, Zahoor Ahmad, Muhammad Hamayun, Ihtisham Wali Khan, Nazish Huma Khan
Summary: The MnO2-PVC composite material is effective and environmentally friendly for removing anionic dye from wastewater. The high adsorption capacity of the composite material is attributed to its unique properties, such as high surface area and porosity. The rate controlling step depends on both intraparticle diffusion and film diffusion.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Pawe E. Tomaszewski
Summary: The comments point out a significant error in the crystallographic part of the commented papers, stating that the studied nanocrystals are actually of the sillenite type, not BiFeO3 as stated in the original papers.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Omar A. Mawlid, Hosam H. Abdelhady, Mohamed S. El-Deab
Summary: An innovative magnetic nanocatalyst, KC/MGF, was developed for the effective production of biodiesel from WCO. The catalyst was characterized using various methods, and optimal reaction conditions were determined using response surface methodology. The kinetic and thermodynamic parameters of the catalyst were estimated, and the catalyst was found to be recoverable through re-impregnation. The physicochemical properties of the biodiesel produced were found to comply with international standards.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Nebojsa Manic, Bojan Jankovic, Ljubica Milovic, Mirko Komatina, Dragoslava Stojiljkovic
Summary: This study investigates the effects of operational parameters on the mechanical and thermal properties of wood pellets used in heat production. The results show that changes in raw materials and operating parameters can significantly affect the characteristics of wood pellets. It is also discovered that a thin solid layer on the surface of the pellet sample increases its thermal resistance. This layer is formed during the production process due to high-temperature impact and friction.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Metallurgy & Metallurgical Engineering
Emircan Uysal, Serhat Al, Elif Emil-Kaya, Srecko Stopic, Sebahattin Gurmen, Bernd Friedrich
Summary: This study investigated the dissolution of NdFeB magnet powders in sulfuric acid solution and found that the concentration of sulfuric acid is a key factor for the dissolution of iron and REEs. The solid-to-liquid ratio and stirring speed had minor effects on the dissolution. The maximum extraction of iron and REEs was achieved under optimal conditions.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Article
Polymer Science
Bojan Jankovic, Nebojsa Manic
Summary: The pyrolysis of Wang resin was studied using dynamic simultaneous thermogravimetric analysis and derivative thermogravimetry techniques. A new experimental model was developed to describe the pyrolysis process of the resin, which was divided into three parallel reaction steps using a deconvolution procedure. The mechanistic nature of each step was explained by applying kinetic models.
Editorial Material
Materials Science, Multidisciplinary
Bernd Friedrich, Jovan N. Jovicevic, Dominic Feldhaus, Vesna S. Cvetkovic
Article
Materials Science, Multidisciplinary
Michaela Gotenbruck, Danilo C. Curtolo, Semiramis Friedrich, Clemens J. Mueller, Nico Rademacher, Bernd Friedrich
Summary: Due to its excellent properties, high-purity to ultra-high-purity aluminum is considered a strategic material to meet future challenges. Current purification methods include electrolytic refining and fractional crystallization. New alternative methods, such as static crystallization, are being researched for more efficient and cost-effective options. This study focused on the feasibility of metal refining using a static crystallization furnace, specifically investigating the effects of temperature gradient, cooling rate, and process parameters on impurity reduction and resulting grain structure.
Article
Biochemistry & Molecular Biology
N. Arul Manikandan, Ronan McCann, Dimitrios Kakavas, Keith D. Rochfort, Sithara P. Sreenilayam, Godze Alkan, Tom Stornetta, Allan Robert McGivern, Konstantinos Grintzalis, Bernd Friedrich, Greg Foley, Dermot Brabazon, Brian Freeland
Summary: Food spoilage leads to increased carbon dioxide emissions and food processing demand. This study developed anti-bacterial coatings using inkjet printing of silver nano-inks on food-grade polymer packaging, aiming to enhance food safety and reduce spoilage. Silver nanoparticles were synthesized and characterized, and all silver nanoparticles showed strong antibacterial activity against E. coli. The printed silver nano-inks on polymer reduced the bacterial cell population, and the bactericidal performance was comparable to penicillin-coated polymer. Ecotoxicity testing on daphniids showed the impact on freshwater environment.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Alexander Birich, Zixi Gao, Dzeneta Vrucak, Bernd Friedrich
Summary: The importance of gold recovery from waste printed circuit boards is increasing due to higher gold prices, demand, and the need for innovative recycling methods. The state-of-the-art recycling process focuses on pyrometallurgical recovery of noble metals using a copper collector. However, a hydrometallurgical process is proposed as an alternative due to technical limitations and high metal impurity concentration. This study investigates different leaching parameters to separate base metals and determine their impact on subsequent gold recovery. Thiosulfate and thiourea are found to be less sensitive to metal impurities, while cyanide achieves good gold recovery when base metals are completely separated.
Article
Materials Science, Multidisciplinary
Hanwen Chung, Laras Prasakti, Srecko R. Stopic, Dominic Feldhaus, Vesna S. Cvetkovic, Bernd Friedrich
Summary: This paper presents the results of a study on recycling NdFeB magnets to recover rare earth elements for remanufacturing similar magnets. The viability of extracting rare earth metals from magnet recycling-derived oxide (MRDO) through molten salt electrolysis is investigated. Experimental results show that the electrochemical reduction of the MRDO in NdF3 + LiF and NdF3 + PrF3 + LiF fused salts systems can effectively deposit metallic Nd and Pr on the working substrate. The suitability of the obtained alloy for remanufacturing NdFeB magnets is evaluated.
Article
Materials Science, Multidisciplinary
Christin Stallmeister, Bernd Friedrich
Summary: The recycling of lithium-ion batteries (LIBs) is important due to the growth of electromobility and raw material supply. Thermal pre-treatment and phase transformations play a crucial role in the recovery of materials from LIBs. This study investigates the impact of gas composition on reaction products and water-based lithium recovery after thermal treatment. The results show that the addition of O-2 reduces reduction reactions and decreases the Li-yield, while CO2 favors the formation of Li2CO3.
Article
Green & Sustainable Science & Technology
Marcus Sommerfeld, Joao Weiss, Bernd Friedrich
Summary: This study investigates the replacement of fossil coke with silicon-rich cutting waste to produce ferrochrome, resulting in products that meet international standards. Adjusting the slag composition with lime is necessary to control silicon levels in the alloys. Thermochemical simulation shows that silicothermic reduction decreases specific electric energy consumption compared to carbothermic reduction.
JOURNAL OF SUSTAINABLE METALLURGY
(2023)
Article
Green & Sustainable Science & Technology
Linda Reinhart, Dzeneta Vrucak, Richard Woeste, Hugo Lucas, Elinor Rombach, Bernd Friedrich, Peter Letmathe
Summary: This paper examines two pyrometallurgical recycling routes for different lithium-ion battery cell compositions from a techno-economic perspective. It investigates the profitability of these recycling processes through a total cost of ownership analysis, based on lifecycle inventories and battery types. The results indicate that the profitability of recycling is greatly influenced by cell chemistry, especially for low-cobalt and low-nickel battery types. A sensitivity analysis reveals different levers and limitations for increasing the process profitability of recycling different lithium-ion battery cell systems.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Polymer Science
Bojan Jankovic, Marija Kojic, Milena Milosevic, Milena Rosic, Hadi Waisi, Bojana Bozilovic, Nebojsa Manic, Vladimir Dodevski
Summary: This study successfully valorized and upcycled cigarette butt (CB) filters through thermo-chemical conversion. The decomposition mechanism of the precursor material, cellulose acetate filter (r-CAcF), was analyzed using micro-scale experiments and detailed kinetic study. The results revealed complex mechanisms involved in the decomposition, including cellulose polymorphic transformation and hydrolytic decomposition of cellulose. Macro-scale experiments showed the effects of operating temperature and heating rate on the surface characteristics of the manufactured carbon.
Review
Materials Science, Multidisciplinary
Vladimir Marcinov, Jakub Klimko, Zita Takacova, Jana Piroskova, Andrea Miskufova, Marcus Sommerfeld, Christian Dertmann, Bernd Friedrich, Dusan Orac
Summary: The objective of this study is to describe primary lithium production and summarize the methods for combined mechanical and hydrometallurgical recycling of lithium-ion batteries (LIBs). It aims to address the problem of lithium losses, which occur in individual recycling steps. The study highlights the use of leaching and solvent extraction methods to reduce lithium losses, with precipitation being the most commonly used method for metal extraction.
Article
Materials Science, Multidisciplinary
Ivana Smiciklas, Bojan Jankovic, Mihajlo Jovic, Jelena Maletaskic, Nebojsa Manic, Snezana Dragovic
Summary: Developing efficient methods for Mn separation is the most challenging task in exploring innovative and sustainable acid mine drainage treatments. This study investigated the influence of AMD chemistry, solid/solution ratio, and contact time on Mn separation by wood ash and bone char, and found the optimal treatment conditions.
Article
Materials Science, Multidisciplinary
Jeraldiny Becker, Sebastian Will, Bernd Friedrich
Summary: Sulfating roasting tests were conducted to investigate lithium recovery from spent LMO batteries. The results showed that high lithium yield and selectivity for manganese were achieved under the optimal temperature, residence time, and molar fraction of CaSO4. The pyrolyzed product displayed a sintering effect.
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)
