期刊
NANO LETTERS
卷 23, 期 20, 页码 9515-9521出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.3c03087
关键词
two-dimensional; van der Waals; single crystal; rhodium oxide; ferromagnetism
This study reports a large-size trigonal single-crystal rhodium oxide with strong ferromagnetism. Theoretical calculations suggest that the ferromagnetism originates from the spin splitting near the Fermi level.
Two-dimensional (2D) van der Waals single crystals with long-range magnetic order are the precondition and urgent task for developing a 2D spintronics device. In contrast to graphene and transition metal dichalcogenides, the study of 2D single-crystal metal oxides with intrinsic ferromagnetic properties remains a huge challenge. Here, we report a large-size trigonal single-crystal rhodium oxide (SC-Tri-RhO2), with crystal parameters of a = b = 3.074 & Aring;, c = 6.116 & Aring;, and a space group of P3m1 (164), exhibiting strong ferromagnetism (FM) at a rather high temperature. Furthermore, theoretical calculations suggest that the ferromagnetism in SC-Tri-RhO2 originates from spin splitting near the Fermi level, and the total magnetic moment is contributed mainly by the Rh atom.
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