Orbital-flop Induced Magnetoresistance Anisotropy in Rare Earth Monopnictide CeSb

Jing Xu, Fengcheng Wu, Jin-Ke Bao, Fei Han, Zhi-Li Xiao (), Ivar Martin (), Yang-Yang Lyu, Yong-Lei Wang, Duck Young Chung, Mingda Li, Wei Zhang (), John E. Pearson, Jidong S. Jiang, Mercouri G. Kanatzidis and Wai-Kwong Kwok
Additional contact information
Jing Xu: Materials Science Division, Argonne National Laboratory
Fengcheng Wu: Materials Science Division, Argonne National Laboratory
Jin-Ke Bao: Materials Science Division, Argonne National Laboratory
Fei Han: Massachusetts Institute of Technology
Zhi-Li Xiao: Materials Science Division, Argonne National Laboratory
Ivar Martin: Materials Science Division, Argonne National Laboratory
Yang-Yang Lyu: Materials Science Division, Argonne National Laboratory
Yong-Lei Wang: Materials Science Division, Argonne National Laboratory
Duck Young Chung: Materials Science Division, Argonne National Laboratory
Mingda Li: Massachusetts Institute of Technology
Wei Zhang: Oakland University
John E. Pearson: Materials Science Division, Argonne National Laboratory
Jidong S. Jiang: Materials Science Division, Argonne National Laboratory
Mercouri G. Kanatzidis: Materials Science Division, Argonne National Laboratory
Wai-Kwong Kwok: Materials Science Division, Argonne National Laboratory

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract The charge and spin of the electrons in solids have been extensively exploited in electronic devices and in the development of spintronics. Another attribute of electrons—their orbital nature—is attracting growing interest for understanding exotic phenomena and in creating the next-generation of quantum devices such as orbital qubits. Here, we report on orbital-flop induced magnetoresistance anisotropy in CeSb. In the low temperature high magnetic-field driven ferromagnetic state, a series of additional minima appear in the angle-dependent magnetoresistance. These minima arise from the anisotropic magnetization originating from orbital-flops and from the enhanced electron scattering from magnetic multidomains formed around the first-order orbital-flop transition. The measured magnetization anisotropy can be accounted for with a phenomenological model involving orbital-flops and a spin-valve-like structure is used to demonstrate the viable utilization of orbital-flop phenomenon. Our results showcase a contribution of orbital behavior in the emergence of intriguing phenomena.

Date: 2019
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DOI: 10.1038/s41467-019-10624-z

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