Loading…
The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3
The Skyrme-particle, the skyrmion, was introduced over half a century ago in the context of dense nuclear matter. But with skyrmions being mathematical objects -special types of topological solitons -they can emerge in much broader contexts. Recently skyrmions were observed in helimagnets, forming n...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Default Article |
| Published: |
2014
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/2134/34358 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1818169577367928832 |
|---|---|
| author | Oleg Janson Ioannis Rousochatzakis Alexander A. Tsirlin M. Belesi Andrei A. Leonov Ulrich K. Roessler Jeroen van den Brink Helge Rosner |
| author_facet | Oleg Janson Ioannis Rousochatzakis Alexander A. Tsirlin M. Belesi Andrei A. Leonov Ulrich K. Roessler Jeroen van den Brink Helge Rosner |
| author_sort | Oleg Janson (7170677) |
| collection | Figshare |
| description | The Skyrme-particle, the skyrmion, was introduced over half a century ago in the context of dense nuclear matter. But with skyrmions being mathematical objects -special types of topological solitons -they can emerge in much broader contexts. Recently skyrmions were observed in helimagnets, forming nanoscale spin-textures. Extending over length scales much larger than the interatomic spacing, they behave as large, classical objects, yet deep inside they are of quantum nature. Penetrating into their microscopic roots requires a multi-scale approach, spanning the full quantum to classical domain. Here, we achieve this for the first time in the skyrmionic Mott insulator Cu 2 OSeO 3. We show that its magnetic building blocks are strongly fluctuating Cu 4 tetrahedra, spawning a continuum theory that culminates in 51a ‰nm large skyrmions, in striking agreement with experiment. One of the further predictions that ensues is the temperature-dependent decay of skyrmions into half-skyrmions. |
| format | Default Article |
| id | rr-article-9412865 |
| institution | Loughborough University |
| publishDate | 2014 |
| record_format | Figshare |
| spelling | rr-article-94128652014-11-04T00:00:00Z The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3 Oleg Janson (7170677) Ioannis Rousochatzakis (5297246) Alexander A. Tsirlin (1415659) M. Belesi (7170458) Andrei A. Leonov (7173389) Ulrich K. Roessler (7170611) Jeroen van den Brink (1299675) Helge Rosner (2051986) Other physical sciences not elsewhere classified untagged Physical Sciences not elsewhere classified The Skyrme-particle, the skyrmion, was introduced over half a century ago in the context of dense nuclear matter. But with skyrmions being mathematical objects -special types of topological solitons -they can emerge in much broader contexts. Recently skyrmions were observed in helimagnets, forming nanoscale spin-textures. Extending over length scales much larger than the interatomic spacing, they behave as large, classical objects, yet deep inside they are of quantum nature. Penetrating into their microscopic roots requires a multi-scale approach, spanning the full quantum to classical domain. Here, we achieve this for the first time in the skyrmionic Mott insulator Cu 2 OSeO 3. We show that its magnetic building blocks are strongly fluctuating Cu 4 tetrahedra, spawning a continuum theory that culminates in 51a ‰nm large skyrmions, in striking agreement with experiment. One of the further predictions that ensues is the temperature-dependent decay of skyrmions into half-skyrmions. 2014-11-04T00:00:00Z Text Journal contribution 2134/34358 https://figshare.com/articles/journal_contribution/The_quantum_nature_of_skyrmions_and_half-skyrmions_in_Cu2OSeO3/9412865 CC BY-NC-ND 4.0 |
| spellingShingle | Other physical sciences not elsewhere classified untagged Physical Sciences not elsewhere classified Oleg Janson Ioannis Rousochatzakis Alexander A. Tsirlin M. Belesi Andrei A. Leonov Ulrich K. Roessler Jeroen van den Brink Helge Rosner The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3 |
| title | The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3 |
| title_full | The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3 |
| title_fullStr | The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3 |
| title_full_unstemmed | The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3 |
| title_short | The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3 |
| title_sort | quantum nature of skyrmions and half-skyrmions in cu2oseo3 |
| topic | Other physical sciences not elsewhere classified untagged Physical Sciences not elsewhere classified |
| url | https://hdl.handle.net/2134/34358 |