Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3}
The bulk helimagnet Cu_{2}OSeO_{3} represents a unique example in the family of B20 cubic helimagnets exhibiting a tilted spiral and skyrmion phase at low temperatures when the magnetic field is applied along the easy 〈001〉 crystallographic direction. Here we present a systematic study of the stabil...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-07-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.033033 |
| _version_ | 1827285215390728192 |
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| author | M. Crisanti A. O. Leonov R. Cubitt A. Labh H. Wilhelm Marcus P. Schmidt C. Pappas |
| author_facet | M. Crisanti A. O. Leonov R. Cubitt A. Labh H. Wilhelm Marcus P. Schmidt C. Pappas |
| author_sort | M. Crisanti |
| collection | DOAJ |
| description | The bulk helimagnet Cu_{2}OSeO_{3} represents a unique example in the family of B20 cubic helimagnets exhibiting a tilted spiral and skyrmion phase at low temperatures when the magnetic field is applied along the easy 〈001〉 crystallographic direction. Here we present a systematic study of the stability and ordering of these low-temperature magnetic states. We focus our attention on the temperature and field dependencies of the tilted spiral state that we observe persisting up to above T=35 K, i.e., up to higher temperatures than reported so far. We discuss these results in the frame of the phenomenological theory introduced by Dzyaloshinskii in an attempt to reach a quantitative description of the experimental findings. We find that the anisotropy constants, which are the drivers behind the observed behavior, exhibit a pronounced temperature dependence. This explains the differences in the behavior observed at high temperatures (above T=18 K), where the cubic anisotropy is weak, and at low temperatures (below T=18 K), where a strong cubic anisotropy induces an abrupt appearance of the tilted spirals out of the conical state and enhances the stability of skyrmions. |
| first_indexed | 2024-04-24T10:11:13Z |
| format | Article |
| id | doaj.art-f1ff0d8c992b4dc9ba867542306f8a2f |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:11:13Z |
| publishDate | 2023-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-f1ff0d8c992b4dc9ba867542306f8a2f2024-04-12T17:32:33ZengAmerican Physical SocietyPhysical Review Research2643-15642023-07-015303303310.1103/PhysRevResearch.5.033033Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3}M. CrisantiA. O. LeonovR. CubittA. LabhH. WilhelmMarcus P. SchmidtC. PappasThe bulk helimagnet Cu_{2}OSeO_{3} represents a unique example in the family of B20 cubic helimagnets exhibiting a tilted spiral and skyrmion phase at low temperatures when the magnetic field is applied along the easy 〈001〉 crystallographic direction. Here we present a systematic study of the stability and ordering of these low-temperature magnetic states. We focus our attention on the temperature and field dependencies of the tilted spiral state that we observe persisting up to above T=35 K, i.e., up to higher temperatures than reported so far. We discuss these results in the frame of the phenomenological theory introduced by Dzyaloshinskii in an attempt to reach a quantitative description of the experimental findings. We find that the anisotropy constants, which are the drivers behind the observed behavior, exhibit a pronounced temperature dependence. This explains the differences in the behavior observed at high temperatures (above T=18 K), where the cubic anisotropy is weak, and at low temperatures (below T=18 K), where a strong cubic anisotropy induces an abrupt appearance of the tilted spirals out of the conical state and enhances the stability of skyrmions.http://doi.org/10.1103/PhysRevResearch.5.033033 |
| spellingShingle | M. Crisanti A. O. Leonov R. Cubitt A. Labh H. Wilhelm Marcus P. Schmidt C. Pappas Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3} Physical Review Research |
| title | Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3} |
| title_full | Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3} |
| title_fullStr | Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3} |
| title_full_unstemmed | Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3} |
| title_short | Tilted spirals and low-temperature skyrmions in Cu_{2}OSeO_{3} |
| title_sort | tilted spirals and low temperature skyrmions in cu 2 oseo 3 |
| url | http://doi.org/10.1103/PhysRevResearch.5.033033 |
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