Controlling Dzyaloshinskii-Moriya interaction in a centrosymmetric nonsymmorphic crystal

Zhongyi Zhang, Shengshan Qin*, Jiadong Zang, Chen Fang, Jiangping Hu, Fu Chun Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Presence of the Dzyaloshinskii-Moriya (DM) interaction in limited noncentrosymmetric materials leads to novel spin textures and exotic chiral physics. The emergence of DM interaction in centrosymmetric crystals could greatly enrich material realization. Here we show that an itinerant centrosymmetric crystal respecting a nonsymmorphic space group is a new platform for the DM interaction. Taking the P4/nmm space group as an example, we demonstrate that the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction induces the DM interactions, in addition to the Heisenberg exchange and the Kaplan-Shekhtman-Entin-wohlman-Aharony (KSEA) interaction. The direction of DM vector depends on the positions of magnetic atoms in the real space, and the amplitude depends on the location of the Fermi surface in the reciprocal space. The diversity stems from the position-dependent site groups and the momentum-dependent electronic structures guaranteed by the nonsymmorphic symmetries. Our study unveils the role of the nonsymmorphic symmetries in affecting magnetism, and suggests that the nonsymmorphic crystals can be promising platforms to design magnetic interactions.

Original languageEnglish
Pages (from-to)1113-1118
Number of pages6
JournalScience Bulletin
Volume68
Issue number11
DOIs
Publication statusPublished - 15 Jun 2023

Keywords

  • Centrosymmetric materials
  • Dzyaloshinskii-Moriya interaction
  • Green's function methods
  • RKKY interaction

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