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Title: Face Centered Cubic and Hexagonal Close Packed Skyrmion Crystals in Centrosymmetric Magnets

Abstract

Skyrmions are disklike objects that typically form triangular crystals in two-dimensional systems. This situation is analogous to the so-called pancake vortices of quasi-two-dimensional superconductors. The way in which Skyrmion disks or “pancake Skyrmions” pile up in layered centrosymmetric materials is dictated by the interlayer exchange. Here, unbiased Monte Carlo simulations and simple stabilization arguments reveal face centered cubic and hexagonal close packed Skyrmion crystals for different choices of the interlayer exchange, in addition to the conventional triangular crystal of Skyrmion lines. Moreover, an inhomogeneous current induces a sliding motion of pancake Skyrmions, indicating that they behave as effective mesoscale particles.

Authors:
ORCiD logo [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. 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:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1469539
Alternate Identifier(s):
OSTI ID: 1420368
Report Number(s):
LA-UR-17-26387
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 7; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Material Science

Citation Formats

Lin, Shi-Zeng, and Batista, Cristian. Face Centered Cubic and Hexagonal Close Packed Skyrmion Crystals in Centrosymmetric Magnets. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.077202.
Lin, Shi-Zeng, & Batista, Cristian. Face Centered Cubic and Hexagonal Close Packed Skyrmion Crystals in Centrosymmetric Magnets. United States. doi:10.1103/PhysRevLett.120.077202.
Lin, Shi-Zeng, and Batista, Cristian. Tue . "Face Centered Cubic and Hexagonal Close Packed Skyrmion Crystals in Centrosymmetric Magnets". United States. doi:10.1103/PhysRevLett.120.077202.
@article{osti_1469539,
title = {Face Centered Cubic and Hexagonal Close Packed Skyrmion Crystals in Centrosymmetric Magnets},
author = {Lin, Shi-Zeng and Batista, Cristian},
abstractNote = {Skyrmions are disklike objects that typically form triangular crystals in two-dimensional systems. This situation is analogous to the so-called pancake vortices of quasi-two-dimensional superconductors. The way in which Skyrmion disks or “pancake Skyrmions” pile up in layered centrosymmetric materials is dictated by the interlayer exchange. Here, unbiased Monte Carlo simulations and simple stabilization arguments reveal face centered cubic and hexagonal close packed Skyrmion crystals for different choices of the interlayer exchange, in addition to the conventional triangular crystal of Skyrmion lines. Moreover, an inhomogeneous current induces a sliding motion of pancake Skyrmions, indicating that they behave as effective mesoscale particles.},
doi = {10.1103/PhysRevLett.120.077202},
journal = {Physical Review Letters},
number = 7,
volume = 120,
place = {United States},
year = {Tue Feb 13 00:00:00 EST 2018},
month = {Tue Feb 13 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on February 13, 2019
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