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Title: Anisotropic magnetocrystalline coupling of the skyrmion lattice in MnSi

Abstract

In this paper, we investigate the anisotropic nature of magnetocrystalline coupling between the crystallographic and skyrmion crystal (SKX) lattices in the chiral magnet MnSi by magnetic field-angle resolved resonant ultrasound spectroscopy. Abrupt changes are observed in the elastic moduli and attenuation when the magnetic field is parallel to the [011] crystallographic direction. These observations are interpreted in a phenomenological Ginzburg-Landau theory that identifies switching of the SKX orientation to be the result of an anisotropic magnetocrystalline coupling potential. Finally, our paper sheds new light on the nature of magnetocrystalline coupling potential relevant to future spintronic applications.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
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  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); LANL Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1441313
Alternate Identifier(s):
OSTI ID: 1429568
Report Number(s):
LA-UR-17-29407
Journal ID: ISSN 2469-9950; TRN: US1900893
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 10; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Material Science

Citation Formats

Luo, Yongkang, Lin, Shi-Zeng, Fobes, D. M., Liu, Zhiqi, Bauer, E. D., Betts, J. B., Migliori, A., Thompson, J. D., Janoschek, M., and Maiorov, B. Anisotropic magnetocrystalline coupling of the skyrmion lattice in MnSi. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.97.104423.
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Luo, Yongkang, Lin, Shi-Zeng, Fobes, D. M., Liu, Zhiqi, Bauer, E. D., Betts, J. B., Migliori, A., Thompson, J. D., Janoschek, M., & Maiorov, B. Anisotropic magnetocrystalline coupling of the skyrmion lattice in MnSi. United States. https://doi.org/10.1103/PhysRevB.97.104423
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Luo, Yongkang, Lin, Shi-Zeng, Fobes, D. M., Liu, Zhiqi, Bauer, E. D., Betts, J. B., Migliori, A., Thompson, J. D., Janoschek, M., and Maiorov, B. Mon . "Anisotropic magnetocrystalline coupling of the skyrmion lattice in MnSi". United States. https://doi.org/10.1103/PhysRevB.97.104423. https://www.osti.gov/servlets/purl/1441313.
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@article{osti_1441313,
title = {Anisotropic magnetocrystalline coupling of the skyrmion lattice in MnSi},
author = {Luo, Yongkang and Lin, Shi-Zeng and Fobes, D. M. and Liu, Zhiqi and Bauer, E. D. and Betts, J. B. and Migliori, A. and Thompson, J. D. and Janoschek, M. and Maiorov, B.},
abstractNote = {In this paper, we investigate the anisotropic nature of magnetocrystalline coupling between the crystallographic and skyrmion crystal (SKX) lattices in the chiral magnet MnSi by magnetic field-angle resolved resonant ultrasound spectroscopy. Abrupt changes are observed in the elastic moduli and attenuation when the magnetic field is parallel to the [011] crystallographic direction. These observations are interpreted in a phenomenological Ginzburg-Landau theory that identifies switching of the SKX orientation to be the result of an anisotropic magnetocrystalline coupling potential. Finally, our paper sheds new light on the nature of magnetocrystalline coupling potential relevant to future spintronic applications.},
doi = {10.1103/PhysRevB.97.104423},
journal = {Physical Review B},
number = 10,
volume = 97,
place = {United States},
year = {Mon Mar 26 00:00:00 EDT 2018},
month = {Mon Mar 26 00:00:00 EDT 2018}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevB.97.104423
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Cited by: 10 works
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Figures / Tables:

FIG. 1. FIG. 1.: (a) Phase diagram of MnSi for H||[001]. The arrows manifest the trajectories of field- and temperature sweeps with field-rotation. The abbreviations are: SKX=Skyrmion crystal, CO=Conical, HM=Helimagnetic, (P)PM=(Polarized) Paramagnetic, and FD=fluctuationsdisordered. (b) Schematic diagram of RUS experimental setup for field rotation. (c-f) Schematic representation of possible SKX orientations inmore » reciprocal space for different field directions. Solid and open circles denote two degenerate domains, respectively.« less
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Works referenced in this record:

Spin Transfer Torques in MnSi at Ultralow Current Densities
journal, December 2010

Magnetic phase diagram of MnSi inferred from magnetization and ac susceptibility
journal, June 2012

Néel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8
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Skyrmion lattice in the doped semiconductor Fe 1 − x Co x Si
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Skyrmion lattices in metallic and semiconducting B20 transition metal compounds
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Blowing magnetic skyrmion bubbles
journal, June 2015

Emergent electrodynamics of skyrmions in a chiral magnet
journal, February 2012

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Real-space observation of a two-dimensional skyrmion crystal
journal, June 2010

Fluctuation-induced first-order phase transition in Dzyaloshinskii-Moriya helimagnets
journal, April 2013

Demagnetizing factors for rectangular ferromagnetic prisms
journal, March 1998

  • Aharoni, Amikam
  • Journal of Applied Physics, Vol. 83, Issue 6
  • DOI: 10.1063/1.367113
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    Works referencing / citing this record:

    Magnetostriction of helimagnets in the skyrmion crystal phase
    journal, December 2019

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      Figures / Tables found in this record:

      FIG. 1. (p. 3)figure
      FIG. 2. (p. 3)figure
      FIG. 3. (p. 4)figure
      FIG. 4. (p. 4)figure
      FIG. 5. (p. 5)figure
      FIG. S1. (p. 7)figure
      FIG. S2. (p. 9)figure
      FIG. S3. (p. 10)figure
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