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Title: Vortex Crystals with Chiral Stripes in Itinerant Magnets

Here, we study noncoplanar magnetic ordering in frustrated itinerant magnets. For a family of Kondo square lattice models with classical local moments, we find that a double-Q noncoplanar vortex crystal has lower energy than the single-Q helical order expected from the Ruderman–Kittel–Kasuya–Yosida interaction when the lattice symmetry dictates four global maxima in the bare magnetic susceptibility. By expanding in the small Kondo exchange and the degree of noncoplanarity, we demonstrate that this noncoplanar state arises from a Fermi surface instability occurring in independent sections connected by two ordering wave vectors.
Authors:
 [1] ;  [2] ; ORCiD logo [3] ;  [4] ;  [1] ;  [5]
  1. Univ. of Tokyo (Japan). Dept. of Applied Physics
  2. Hokkaido Univ., Sapporo (Japan). Dept. of Physics
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of Virginia, Charlottesville, VA (United States). Dept. of Physics
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division and Shull-Wollan Center
Publication Date:
Report Number(s):
LA-UR-15-27951
Journal ID: ISSN 0031-9015
Grant/Contract Number:
89233218CNA000001
Type:
Accepted Manuscript
Journal Name:
Journal of the Physical Society of Japan
Additional Journal Information:
Journal Volume: 85; Journal Issue: 10; Journal ID: ISSN 0031-9015
Publisher:
Physical Society of Japan
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; High Magnetic Field Science; Material Science
OSTI Identifier:
1485386

Ozawa, Ryo, Hayami, Satoru, Barros, Kipton Marcos, Chern, Gia-Wei, Motome, Yukitoshi, and Batista, Cristian Daniel. Vortex Crystals with Chiral Stripes in Itinerant Magnets. United States: N. p., Web. doi:10.7566/JPSJ.85.103703.
Ozawa, Ryo, Hayami, Satoru, Barros, Kipton Marcos, Chern, Gia-Wei, Motome, Yukitoshi, & Batista, Cristian Daniel. Vortex Crystals with Chiral Stripes in Itinerant Magnets. United States. doi:10.7566/JPSJ.85.103703.
Ozawa, Ryo, Hayami, Satoru, Barros, Kipton Marcos, Chern, Gia-Wei, Motome, Yukitoshi, and Batista, Cristian Daniel. 2016. "Vortex Crystals with Chiral Stripes in Itinerant Magnets". United States. doi:10.7566/JPSJ.85.103703. https://www.osti.gov/servlets/purl/1485386.
@article{osti_1485386,
title = {Vortex Crystals with Chiral Stripes in Itinerant Magnets},
author = {Ozawa, Ryo and Hayami, Satoru and Barros, Kipton Marcos and Chern, Gia-Wei and Motome, Yukitoshi and Batista, Cristian Daniel},
abstractNote = {Here, we study noncoplanar magnetic ordering in frustrated itinerant magnets. For a family of Kondo square lattice models with classical local moments, we find that a double-Q noncoplanar vortex crystal has lower energy than the single-Q helical order expected from the Ruderman–Kittel–Kasuya–Yosida interaction when the lattice symmetry dictates four global maxima in the bare magnetic susceptibility. By expanding in the small Kondo exchange and the degree of noncoplanarity, we demonstrate that this noncoplanar state arises from a Fermi surface instability occurring in independent sections connected by two ordering wave vectors.},
doi = {10.7566/JPSJ.85.103703},
journal = {Journal of the Physical Society of Japan},
number = 10,
volume = 85,
place = {United States},
year = {2016},
month = {10}
}