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, Wai Kwong Kwok

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


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.

Original languageEnglish (US)
Article number2875
JournalNature communications
Issue number1
StatePublished - Dec 1 2019

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)


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