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Title: Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices

Abstract

Magnetic skyrmions are nanosized topologically protected spin textures with particlelike properties. They can form lattices perpendicular to the magnetic field, and the orientation of these skyrmion lattices with respect to the crystallographic lattice is governed by spin-orbit coupling. By performing small-angle neutron scattering measurements, we investigate the coupling between the crystallographic and skyrmion lattices in both Cu 2OSeO 3 and the archetype chiral magnet MnSi. The results reveal that the orientation of the skyrmion lattice is primarily determined by the magnetic field direction with respect to the crystallographic lattice. In addition, it is also influenced by the magnetic history of the sample, which can induce metastable lattices. Kinetic measurements show that these metastable skyrmion lattices may or may not relax to their equilibrium positions under macroscopic relaxation times. Moreover, multidomain lattices may form when two or more equivalent crystallographic directions are favored by spin-orbit coupling and oriented perpendicular to the magnetic field.

Authors:
 [1];  [1];  [2];  [3];  [3];  [4];  [5];  [5];  [6];  [1]
  1. Delft Univ. of Technology, Delft (Netherlands)
  2. Rutherford Appleton Lab., STFC, Didcot (United Kingdom)
  3. Lab. Leon Brillouin, Gif sur Yvette (France)
  4. Max Planck Institute for Chemical Physics of Solids, Dresden (Germany)
  5. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  6. Diamond Light Source Ltd., Didcot (United Kingdom)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1410344
Alternate Identifier(s):
OSTI ID: 1408564
Report Number(s):
IS-J-9505
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; 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

Citation Formats

Bannenberg, L. J., Qian, F., Dalgliesh, R. M., Martin, N., Chaboussant, G., Schmidt, M., Schlagel, D. L., Lograsso, T. A., Wilhelm, H., and Pappas, C. Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.184416.
Bannenberg, L. J., Qian, F., Dalgliesh, R. M., Martin, N., Chaboussant, G., Schmidt, M., Schlagel, D. L., Lograsso, T. A., Wilhelm, H., & Pappas, C. Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices. United States. doi:10.1103/PhysRevB.96.184416.
Bannenberg, L. J., Qian, F., Dalgliesh, R. M., Martin, N., Chaboussant, G., Schmidt, M., Schlagel, D. L., Lograsso, T. A., Wilhelm, H., and Pappas, C. Mon . "Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices". United States. doi:10.1103/PhysRevB.96.184416. https://www.osti.gov/servlets/purl/1410344.
@article{osti_1410344,
title = {Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices},
author = {Bannenberg, L. J. and Qian, F. and Dalgliesh, R. M. and Martin, N. and Chaboussant, G. and Schmidt, M. and Schlagel, D. L. and Lograsso, T. A. and Wilhelm, H. and Pappas, C.},
abstractNote = {Magnetic skyrmions are nanosized topologically protected spin textures with particlelike properties. They can form lattices perpendicular to the magnetic field, and the orientation of these skyrmion lattices with respect to the crystallographic lattice is governed by spin-orbit coupling. By performing small-angle neutron scattering measurements, we investigate the coupling between the crystallographic and skyrmion lattices in both Cu2OSeO3 and the archetype chiral magnet MnSi. The results reveal that the orientation of the skyrmion lattice is primarily determined by the magnetic field direction with respect to the crystallographic lattice. In addition, it is also influenced by the magnetic history of the sample, which can induce metastable lattices. Kinetic measurements show that these metastable skyrmion lattices may or may not relax to their equilibrium positions under macroscopic relaxation times. Moreover, multidomain lattices may form when two or more equivalent crystallographic directions are favored by spin-orbit coupling and oriented perpendicular to the magnetic field.},
doi = {10.1103/PhysRevB.96.184416},
journal = {Physical Review B},
number = 18,
volume = 96,
place = {United States},
year = {2017},
month = {11}
}

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Works referenced in this record:

Spontaneous skyrmion ground states in magnetic metals
journal, August 2006

  • R��ler, U. K.; Bogdanov, A. N.; Pfleiderer, C.
  • Nature, Vol. 442, Issue 7104, p. 797-801
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