Magnetic properties of the quasi two-dimensional centered honeycomb antiferromagnet GdInO3

作     者：Xunqing Yin Yunlong Li Guohua Wang Jiayuan Hu Chenhang Xu Qi Lu Yunlei Zhong Jiawang Zhao Xiang Zhao Yuanlei Zhang Yiming Cao Kun Xu Zhe Li Yoshitomo Kamiya Guo Hong Dong Qian 

作者机构：Institute of Applied Physics and Materials Engineering University of Macau Avenida da Universidade Taipa Macau 999078 China Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education) Shenyang National Laboratory for Materials Science School of Physics and Astronomy Shanghai Jiao Tong University Shanghai 200240 China Center for Magnetic Materials and Devices College of Physics and Electronic Engineering Qujing Normal University Qujing 655011 China Department of Physics and Chemistry Faculty of Science and Technology University of Macau Avenida da Universidade Taipa Macau 999078 China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093 China Tsung-Dao Lee Institute Shanghai Jiao Tong University Shanghai 200240 China 

出 版 物：《Physical Review B》 (Phys. Rev. B)

年 卷 期：2021年第104卷第13期

页      面：134432-134432页

核心收录：

基　　金：Macau, (0059/2018/A2, 009/2017/AMJ) Project for Applied Basic Research Programs of Yunnan Province, (18FB010, 2018FB010, 51861032) Yunnan Local Colleges Applied Basic Research Projects of Yunnan Province, (2018FH001-001) National Natural Science Foundation of China, NSFC, (11774223, 11950410507, 12074246, 51862032, U2032213) Ministry of Science and Technology, Taiwan, MOST, (2016YFA0300500, 2016YFA0300501) Universidade de Macau, UM, (MYRG2018-00079-IAPME, MYRG2019-00115-IAPME) Fundo para o Desenvolvimento das Ciências e da Tecnologia, FDCT Science, Technology and Innovation Commission of Shenzhen Municipality, (SGDX 20201103093600003) 

主　　题：Magnetic interactions Magnetic order Magnetic phase transitions Magnetism Honeycomb lattice Magnetization measurements Monte Carlo methods 

摘      要：The crystal structure and magnetic property of the single crystalline hexagonal rare-earth indium oxides GdInO3 have been studied by combing experiments and model calculations. The two inequivalent Gd3+ ions form the centered honeycomb lattice, which consists of honeycomb and triangular sublattices. The dc magnetic susceptibility and specific heat measurements suggest two antiferromagnetic phase transitions at TN1=2.3K and TN2=1.02K. An inflection point is observed in the isothermal magnetization curve, which can be an indication of an up-up-down phase with a 1/3 magnetization plateau, further supported by our theoretical calculation. We also observe a large magnetic entropy change originated from the magnetic frustration in GdInO3. By considering a classical spin Hamiltonian, we establish the ground state phase diagram, which suggests that GdInO3 has a weak easy-axis anisotropy and is close to the equilateral triangular-lattice system. The theoretical ground-state phase diagram may be used as a reference in NMR, ESR, or μSR experiments in future.