摘要
The crystallographic and magnetic properties are presented for van der Waals antiferromagnetic FePS_3. High-quality single crystals of millimeter size have been successfully synthesized through the chemical vapor transport method. The layered structure and cleavability of the compound are apparent, which are beneficial for a potential exploration of the interesting low dimensional magnetism, as well as for incorporation of FePS_3 into van der Waals heterostructures. For the sake of completeness, we have measured both direct current(dc) and alternating current(ac) magnetic susceptibility.The paramagnetic to antiferromagnetic transition occurs at approximately T_N 115 K. The effective moment is larger than the spin-only effective moment, suggesting that an orbital contribution to the total angular momentum of the Fe^(2+) could be present. The ac susceptibility is independent of frequency, which means that the spin freezing effect is excluded.Strong anisotropy of out-of-plane and in-plane susceptibility has been shown, demonstrating the Ising-type magnetic order in FePS_3 system.
The crystallographic and magnetic properties are presented for van der Waals antiferromagnetic FePS_3. High-quality single crystals of millimeter size have been successfully synthesized through the chemical vapor transport method. The layered structure and cleavability of the compound are apparent, which are beneficial for a potential exploration of the interesting low dimensional magnetism, as well as for incorporation of FePS_3 into van der Waals heterostructures. For the sake of completeness, we have measured both direct current(dc) and alternating current(ac) magnetic susceptibility.The paramagnetic to antiferromagnetic transition occurs at approximately T_N 115 K. The effective moment is larger than the spin-only effective moment, suggesting that an orbital contribution to the total angular momentum of the Fe^(2+) could be present. The ac susceptibility is independent of frequency, which means that the spin freezing effect is excluded.Strong anisotropy of out-of-plane and in-plane susceptibility has been shown, demonstrating the Ising-type magnetic order in FePS_3 system.
作者
Qi-Yun Xie
Min Wu
Li-Min Chen
Gang Bai
Wen-Qin Zou
Wei Wang
Liang He
解其云;吴敏;陈丽敏;白刚;邹文琴;王伟;何亮(Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province,Nanjing University of Posts & Telecommunications;National Laboratory of Solid State Microstructures, Nanjing University;Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, Collaborative Innovation Center of Advanced Microstructures,School of Electronic Science and Engineering, Nanjing University;Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM),Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University)
基金
Project supported by the National Natural Science Foundation of China(Grant Nos.11404169,51602159,and 11704196)
the Scientific Research Foundation of Nanjing University of Posts&Telecommunications,China(Grant Nos.NY217043 and NY218021)
the Postgraduate Research&Practice Innovation Program of Jiangsu Province,China(Grant Nos.KYCX17 0754 and SJCX18 0287)
