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Condensed Matter > Strongly Correlated Electrons

Title: Multipolar Skyrmion Crystals in Non-Kramers Doublet Systems

Authors: Hao Zhang, Shi-Zeng Lin
(Submitted on 22 Apr 2024)
Abstract: We study the Kondo lattice model of multipolar magnetic moments interacting with conduction electrons on a triangular lattice. Bond-dependent electron hoppings induce a compass-like anisotropy in the effective Ruderman-Kittel-Kasuya-Yosida interaction between multipolar moments. This unique anisotropy stabilizes multipolar skyrmion crystals with a skyrmion topological charge of 1 and 2 at a zero magnetic field. Diverse multipolar phases in the phase diagram give rise to novel spontaneous Hall response of conduction electrons.
Comments: 6+6 pages, 4+3 figures
Subjects: Strongly Correlated Electrons (cond-mat.str-el); Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Materials Science (cond-mat.mtrl-sci)
Cite as: arXiv:2404.14404 [cond-mat.str-el]
  (or arXiv:2404.14404v1 [cond-mat.str-el] for this version)

Submission history

From: Hao Zhang [view email]
[v1] Mon, 22 Apr 2024 17:59:02 GMT (13026kb,D)
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