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Title: Bubble and skyrmion crystals in frustrated magnets with easy-axis anisotropy

Abstract

We clarify the conditions for the emergence of multiple-Q structures out of lattice and easy-axis spin anisotropy in frustrated magnets. By considering magnets whose exchange interaction has multiple global minima in momentum space, we find that both types of anisotropy stabilize triple-Q orderings. Moderate anisotropy leads to a magnetic field-induced skyrmion crystal, which evolves into a bubble crystal for increasing spatial and spin anisotropy. Finally, the bubble crystal exhibits a quasi-continuous (devil’s staircase) temperature dependent ordering wave-vector, characteristic of the competition between frustrated exchange and strong easy-axis anisotropy.

Authors:
 [1];  [2];  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division; Hokkaido Univ., Sapporo (Japan). Dept. of Physics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1304725
Alternate Identifier(s):
OSTI ID: 1253023; OSTI ID: 1338738
Report Number(s):
LA-UR-16-22603; LA-UR-16-20104
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 93; Journal Issue: 18; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; skyrmion crystals; frustrated magnets; anisotropy; bubble crystal; Material Science

Citation Formats

Hayami, Satoru, Lin, Shi-Zeng, and Batista, Cristian D. Bubble and skyrmion crystals in frustrated magnets with easy-axis anisotropy. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.93.184413.
Hayami, Satoru, Lin, Shi-Zeng, & Batista, Cristian D. Bubble and skyrmion crystals in frustrated magnets with easy-axis anisotropy. United States. doi:10.1103/PhysRevB.93.184413.
Hayami, Satoru, Lin, Shi-Zeng, and Batista, Cristian D. Thu . "Bubble and skyrmion crystals in frustrated magnets with easy-axis anisotropy". United States. doi:10.1103/PhysRevB.93.184413. https://www.osti.gov/servlets/purl/1304725.
@article{osti_1304725,
title = {Bubble and skyrmion crystals in frustrated magnets with easy-axis anisotropy},
author = {Hayami, Satoru and Lin, Shi-Zeng and Batista, Cristian D.},
abstractNote = {We clarify the conditions for the emergence of multiple-Q structures out of lattice and easy-axis spin anisotropy in frustrated magnets. By considering magnets whose exchange interaction has multiple global minima in momentum space, we find that both types of anisotropy stabilize triple-Q orderings. Moderate anisotropy leads to a magnetic field-induced skyrmion crystal, which evolves into a bubble crystal for increasing spatial and spin anisotropy. Finally, the bubble crystal exhibits a quasi-continuous (devil’s staircase) temperature dependent ordering wave-vector, characteristic of the competition between frustrated exchange and strong easy-axis anisotropy.},
doi = {10.1103/PhysRevB.93.184413},
journal = {Physical Review B},
number = 18,
volume = 93,
place = {United States},
year = {2016},
month = {5}
}

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Cited by: 14 works
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    Works referencing / citing this record:

    Edge states and skyrmion dynamics in nanostripes of frustrated magnets
    journal, February 2017


    Skyrmions and multisublattice helical states in a frustrated chiral magnet
    journal, October 2017


    Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer
    journal, April 2019


    Creation and Annihilation of Skyrmions in the Frustrated Magnets with Competing Exchange Interactions
    journal, November 2017