Controlling the Topological Sector of Magnetic Solitons in Exfoliated Cr_{1/3}NbS_{2} Crystals.
- Wang L Department of Quantum Matter Physics and Group of Applied Physics, University of Geneva, 24 quai Ernest-Ansermet, CH-1211 Geneva, Switzerland.
- Chepiga N Institute of Physics, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
- Ki DK Department of Quantum Matter Physics and Group of Applied Physics, University of Geneva, 24 quai Ernest-Ansermet, CH-1211 Geneva, Switzerland.
- Li L Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA.
- Li F Theoretical Division, T-4 and CNLS, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
- Zhu W Theoretical Division, T-4 and CNLS, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
- Kato Y Department of Applied Physics, University of Tokyo, Hongo, 7-3-1, Bunkyo, Tokyo 113-8656, Japan.
- Ovchinnikova OS Nanofabrication Research Laboraotry, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6493, USA.
- Mila F Institute of Physics, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
- Martin I Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
- Mandrus D Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA.
- Morpurgo AF Department of Quantum Matter Physics and Group of Applied Physics, University of Geneva, 24 quai Ernest-Ansermet, CH-1211 Geneva, Switzerland.
- 2017-07-12
Published in:
- Physical review letters. - 2017
English
We investigate manifestations of topological order in monoaxial helimagnet Cr_{1/3}NbS_{2} by performing transport measurements on ultrathin crystals. Upon sweeping the magnetic field perpendicularly to the helical axis, crystals thicker than one helix pitch (48 nm) but much thinner than the magnetic domain size (∼1 μm) are found to exhibit sharp and hysteretic resistance jumps. We show that these phenomena originate from transitions between topological sectors with a different number of magnetic solitons. This is confirmed by measurements on crystals thinner than 48 nm-in which the topological sector cannot change-that do not exhibit any jump or hysteresis. Our results show the ability to deterministically control the topological sector of finite-size Cr_{1/3}NbS_{2} and to detect intersector transitions by transport measurements.
- Language
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- English
- Open access status
- hybrid
- Identifiers
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- DOI 10.1103/PhysRevLett.118.257203
- PMID 28696733
- Persistent URL
- https://sonar.rero.ch/global/documents/169522
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