Article
Chemistry, Physical
Chaocheng Liu, Xiansong Liu, Xucai Kan, Jiyu Hu
Summary: Antiperovskite materials show potential in data storage and energy conversion due to their diverse magnetic configurations and novel phenomena. We report the critical behavior of Sn0.6NFe3.4 antiperovskite, which exhibits a second-order magnetic transition at 230 K. The obtained critical exponents (fi, y, and 5) are consistent across different theoretical methods and verified by scaling laws. Our findings suggest a long-range ferromagnetic coupling in the system, providing insights for further research and applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Physics, Applied
Rubyann Olmos, Jose A. Delgado, Hector Iturriaga, Luis M. Martinez, Christian L. Saiz, L. Shao, Y. Liu, C. Petrovic, Srinivasa R. Singamaneni
Summary: The critical phenomena and magnetic entropy of the quasi-2D ferrimagnetic crystal Mn3Si2Te6 (MST) were analyzed under proton irradiation. The results show that proton irradiation affects the critical exponents and spin dimensionality of MST, while long-range interactions are maintained. Additionally, an increase in magnetic correlations was observed under high magnetic fields in proton-irradiated MST samples.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Taesu Park, Wang Ro Lee, Won-Joon Son, Ji-Hoon Shim, Changhoon Lee
Summary: By investigating the spin exchange interactions and spin-orbit coupling effect, the magnetic structure and the origin of band gap opening for Ba2CuOsO6 were revealed. It was found that Ba2CuOsO6 is a magnetic insulator, with the spin exchange interaction between Cu ions playing a major role in its antiferromagnetic behavior. The insulating behavior of Ba2CuOsO6 is also closely related to the structural distortion shape of the OsO6 octahedron.
Article
Engineering, Multidisciplinary
Zhi Yong Ai, Zhong Hao Chu, Yi Chong Cheng
Summary: The extended precise integral solution to Biot's consolidation equation for cross-anisotropic viscoelastic saturated soils based on the Merchant model is derived using the elastic-viscoelastic correspondence principle and the integral transform technique. A semi-analytical and semi-numerical solution is proposed for the interaction between layered cross-anisotropic viscoelastic saturated soils and raft foundation considering the stiffness contributions of the superstructure. The influence of viscoelastic parameters, cross-anisotropic parameters, raft thickness, and superstructure stiffness on the time-dependent behavior of settlement and bending moment for the raft is studied through numerical examples.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Chemistry, Multidisciplinary
Johnny A. Sannes, Ranjith K. Kizhake Malayil, Laura T. Corredor, Anja U. B. Wolter, Hans-Joachim Grafe, Martin Valldor
Summary: The mixed-anion compound Sr2VO3Cl has been synthesized for the first time using high-temperature solid-state synthesis under inert conditions. It belongs to the known Sr2TmO3Cl family with Tm = V. The compound exhibits paramagnetic behavior at high temperatures, with antiferromagnetic interactions between the magnetic vanadium spins. Specific heat capacity studies show anomalies at 5 and 35 K, but they are not related to long-range magnetic ordering. Cl-35 ss-NMR investigations suggest a slow spin freezing below 4.2 K.
Article
Materials Science, Multidisciplinary
J. Blasco, J. A. Rodriguez-Velamazan, G. Subias, M. C. Sanchez, J. L. Garcia-Munoz
Summary: The magnetism of SmBaMn2O5 was studied using magnetic and neutron diffraction measurements on a single crystal. The compound has an oxygen deficient perovskite structure with a layered ordering of Sm and Ba cations. The Mn atoms are arranged in a checkerboard pattern in the ab-plane, forming expanded-compressed pyramids. Below 134 K, the Mn moments exhibit ferrimagnetic ordering, while the Sm moments begin to polarize around 10 K in the ab-plane.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Azizur Rahman, Majeed Ur Rehman, Maryam Kiani, Hongze Zhao, Jianlin Wang, Yalin Lu, Keqing Ruan, Rucheng Dai, Zhongping Wang, Lei Zhang, Jian Wang, Zengming Zhang
Summary: The magnetization of the highly air-stable two-dimensional intrinsic ferromagnet FeTa3S6 single crystal has been systematically investigated, revealing a paramagnetic to ferromagnetic phase transition and a strong magnetic anisotropy along the crystallographic c axis. A magnetic phase diagram has been constructed based on detailed magnetization measurements and universality scaling, showing similarities with the magnetic phase diagram of CrNb3S6.
Article
Chemistry, Multidisciplinary
Cheng Zhang, Yue Gu, Le Wang, Liang-Long Huang, Ying Fu, Cai Liu, Shanmin Wang, Huimin Su, Jia-Wei Mei, Xiaolong Zou, Jun-Feng Dai
Summary: The study reports the pressure-enhanced ferromagnetism in layered CrSiTe3, showing the transition from soft to hard ferromagnetism with increasing pressure. The Curie temperature and coercivity dramatically increase with pressure, indicating a remarkable influence of pressure on exchange interactions and offering new opportunities in pursuit of high-temperature layered ferromagnets.
Article
Chemistry, Inorganic & Nuclear
Valeriy Yu. Verchenko, Alexander V. Kanibolotskiy, Ivan V. Chernoukhov, Kirill A. Cherednichenko, Alexey V. Bogach, Konstantin O. Znamenkov, Alexey V. Sobolev, Iana S. Glazkova, Igor A. Presniakov, Andrei V. Shevelkov
Summary: This article reports the synthesis, crystal growth, and magnetic properties of ternary chalcogenides FeAl2Se4, MnAl2S4, and MnAl2Se4. The crystal structures were analyzed by powder X-ray diffraction, Mossbauer spectroscopy, and high resolution transmission electron microscopy. FeAl2Se4 and MnAl2S4 show no long-range magnetic order, and Fe and Mn possess effective magnetic moments of 4.99(2) and 5.405(6) mu B, respectively.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Xujia Gong, Carmine Autieri, Huanfu Zhou, Jiafeng Ma, Xin Tang, Xiaojun Zheng, Xing Ming
Summary: This study explores the properties of a less-investigated trivalent iridate, K0.75Na0.25IrO2, and finds that its band structure can be modulated by mechanical strain, resulting in enhanced electrical conductivity. These findings suggest the potential application of K0.75Na0.25IrO2 as a nanoelectronic and thermoelectric material.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Junwei Liu, Bowen Zhang, Shenglin Lu, Xing Ming, Xiaojun Kuang
Summary: Eu2+ substitution reduces the dielectric permittivity of CaTiN2 and enhances the tetragonal structure, while retaining the orthorhombic symmetry and making EuTiN2 inaccessible. In contrast, Ca1-xSrxTiN2 undergoes a structural transition from orthorhombic to tetragonal at x = 0.5, despite the similar sizes of Eu2+ and Sr2+ ions.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Electrical & Electronic
Xiang Jin, Cheng Li, Hongwei Chen, Fengze Cao, Yi Lu, Wenxing Wang, Lin Zheng, Jianjun Zhao
Summary: This study investigates the effect of Eu doping on the magnetic properties of perovskite manganite La0.8-xEuxSr0.2MnO3(x = 0 and 0.05) polycrystalline samples. The Eu-doped samples show an increase in Curie temperature and a change in ferromagnetic coupling compared to the undoped samples. The newly synthesized polycrystalline samples exhibit potential for use as magnetic refrigeration materials.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Allwin Sudhakaran, Ashwin Sudhakaran, Sivasenthil Elangeeran
Summary: In this report, the influence of Copper-doped Barium Hexaferrite (CBH) on the structure, elasticity, morphology, composition, and optical and magnetic behavior of hybrid BaFe12-0.5Cu0.5O19/Co0.6Zn0.4Fe2O4 (CBH/CZF) nanocomposites is described. Various analysis techniques were used to examine the properties of the composites. The results show that CBH has significant effects on the structure, optical properties, and magnetic behavior of the nanocomposites.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Ralf Albrecht, Jens Hunger, Markus Hoelzel, Emmanuelle Suard, Walter Schnelle, Thomas Doert, Michael Ruck
Summary: Five substituted oxohydroxoferrates were synthesized in a potassium hydroxide hydroflux, with varying crystal structures and potassium ion conductivity. The magnetic structures of the antiferromagnetic compounds were determined, and improved ion conductivity was achieved by storing in air or annealing at 700 degrees C.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Zhenhong Tan, Anucha Koedtruad, Masato Goto, Makoto Iihoshi, Yuichi Shimakawa
Summary: The two obtained oxides have hexagonal perovskite structures, with the Fe-containing units sandwiched by nonmagnetic GeO4 tetrahedral layers, resulting in two-dimensional ferrimagnetic behaviors in both compounds due to intra- and interunit magnetic interactions.
INORGANIC CHEMISTRY
(2021)
Article
Physics, Condensed Matter
Qianhui Mao, Yannan Zhang, Qin Chen, Ruixue Li, Xiaodong Geng, Jinfeng Yang, Haoshan Hao, Minghu Fang
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2020)
Article
Physics, Condensed Matter
Qianhui Mao, Xiaodong Geng, Jinfeng Yang, Ruixue Li, Haoshan Hao, Jinhu Yang, Hangdong Wang, Binjie Xu, Minghu Fang
PHYSICA B-CONDENSED MATTER
(2019)
Article
Physics, Applied
Qianhui Mao, Jinfeng Yang, Ruixue Li, Haoshan Hao, Zhefeng Lou, Yuxing Zhou, Minghu Fang
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
(2019)
Article
Physics, Applied
Wuzhang Yang, Zhefeng Lou, Qinqing Zhu, Bin Chen, Hangdong Wang, Qianhui Mao, Jianhua Du, Jinhu Yang, Minghu Fang
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2019)
Article
Physics, Condensed Matter
Qianhui Mao, Hangdong Wang, Jinhu Yang, HanLei Liu, Mengyang Pan, Ruixue Li, Haoshan Hao, Minghu Fang
JOURNAL OF PHYSICS-CONDENSED MATTER
(2020)
Article
Physics, Condensed Matter
Xiao-Dong Tan, Qian-Hui Mao
JOURNAL OF PHYSICS-CONDENSED MATTER
(2020)
Article
Green & Sustainable Science & Technology
Yuan Wang, Shao Wang, Yiwei Zhang, Qianhui Mao, Shanhe Su, Zhilin Chen
Summary: The study proposed a novel theoretical model of solar thermophotovoltaic system, with two configurations to enhance performance and considering various factors. The results show that the presence of a down converter can efficiently improve the system's performance and provide theoretical guidance for efficient solar energy harvesting.
JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY
(2021)
Article
Physics, Condensed Matter
Bin Chen, Jinhu Yang, Hangdong Wang, Yuhong Zhu, Qianhui Mao, Jianhua Du, Minghu Fang
Summary: In this paper, Cs-133 nuclear magnetic resonance (NMR) measurements were used to study the magnetic properties of an A-type antiferromagnet CsCo2Se2. The results showed evidence of antiferromagnetic transition at 70 K, with increasing antiferromagnetic spin fluctuations at lower temperatures. The linear relationship between T1T-T indicated that antiferromagnetic spin fluctuations are two-dimensional in the paramagnetic state.
SOLID STATE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Qianhui Mao, Yuan Wang, Ruixue Li, Jiayun Qian, Hangdong Wang, Bin Chen, Jun Ding, Rajwali Khan, Haoshan Hao, Jinhu Yang
Summary: The magnetic and critical properties of a TeBr-transported CrNbS single crystal were studied, revealing a paramagnetic-to-ferromagnetic phase transition temperature, effective magnetic moment, and small spontaneous magnetic moment compared to effective moment. The analysis suggests dominant short-range ferromagnetic interactions and discusses the deviation of critical exponents from the theoretical model.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Binjie Xu, Qianhui Mao, Yuxing Zhou, Qin Chen, Huancheng Chen, Shuijin Chen, Zhefeng Lou, Chunxiang Wu, Jianhua Du, Jinhu Yang, Hangdong Wang, Minghu Fang
Summary: The critical behavior of ferromagnetic transition in La0.85Co1.68As2 crystal with a ThCr2Si2-type structure was investigated, revealing critical exponents and characteristics of magnetic interaction. The results belong to the three-dimensional Heisenberg model and suggest short range coupling, providing important insights into the mechanism of ferromagnetism in La0.85Co1.68As2 compound.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Rajwali Khan, Khaled Althubeiti, Merfat Algethami, Nasir Rahman, Mohammad Sohail, Qianhui Mao, Quaid Zaman, Asad Ullah, Nasir Ilyas, Amir Mohammad Afzal, Alamzeb Khan, Mian Akif Safeen, Aurangzeb Khan
Summary: In this study, a detailed investigation was conducted on the (Ce1_xYx)(2)Ir3Ge5 antiferromagnetic compounds, demonstrating that the substitution of Y can decrease the antiferromagnetic phase temperature. When x=0.3, the antiferromagnetic transition temperature is suppressed to zero kelvin at an apparent antiferromagnetic quantum critical point without showing any signs of superconductivity, and the temperature dependence of heat capacity and electrical resistivity in this region display non-Fermi Liquid behavior.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Rui-Xue Li, Xing-Ling Tian, Si-Cong Zhu, Qian-Hui Mao, Jun Ding, Hai-Dong Li
Summary: This study systematically investigates the electronic properties and photocatalytic performance of MoSi2N4/CrS2 heterostructure based on first-principle calculations. The results show that the heterostructure exhibits promising photocatalytic properties and a high solar-to-hydrogen efficiency, providing useful guidance for the design and application of MoSi2N4-based heterostructures.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Physics, Condensed Matter
Qianhui Mao, Yingying Xu, Ruixue Li, Yuan Wang, Haidong Li, Lisha Xue, Haoshan Hao, Rajwali Khan, Bin Chen, Jinhu Yang
Summary: The magnetic properties, magnetic entropy change, and critical behavior of Mn1/4+delta NbS2 single crystals were investigated. Two magnetic phase transitions were observed, and the effective magnetic moment and saturation moment were deduced. The magnetic entropy change exhibited two series of peaks, and the critical exponents were analyzed, indicating competing magnetic couplings in the crystal.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Engineering, Electrical & Electronic
Lisha Xue, Yuan Wang, Shuangmei Zhu, Qianhui Mao, Xiaopeng Jia, Yuewen Zhang
Summary: We synthesized the quaternary copper selenide BixCu2-3xSe0.95Te0.05 compounds by high-pressure followed with ball milling method and investigated their thermoelectric properties. The crystal structure and element doping were characterized and verified by X-ray diffraction, high-resolution transmission electron microscope and X-ray photoelectron spectroscopy. Samples with x = 0.001 and 0.002 exhibited larger layered grain size and smaller grain boundary compared to other samples, which resulted in reduced resistivity and optimized electronic characteristics in a wide temperature range. Surprisingly, dislocation-induced lattice strain fluctuations caused abrupt thermal conductivity, contrary to previous results. Ultimately, a peak value of zT = 1.03 at 873 K was achieved for Bi0.001Cu1.997Se0.95Te0.05 and Bi0.002Cu1.994Se0.95Te0.05.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Physics, Applied
Yuan Wang, Aoao Ding, Haidong Li, Shaohui Liu, Qianhui Mao, Zhimin Yang, Shanhe Su
Summary: In this work, a model of a photon-enhanced thermionic emission system with a nanoscale vacuum gap is established, incorporating electron transport due to electron tunneling and near-field radiation resulting from photon tunneling. Analytical expressions for thermionic emission current, electron tunneling current, and heat flux due to near-field radiation are provided. The impacts of voltage, electron affinity, and gap distance on performance are further analyzed. Results demonstrate that the proposed system can achieve high efficiency at low-temperature cathodes, with up to 34.7% solar-to-electricity efficiency possible at a cathode temperature of 472.5 K. The proposed model offers a strategy for designing highly efficient thermionic emission devices operating at low temperatures.
JOURNAL OF APPLIED PHYSICS
(2023)
