SP-STM study of the multi-Q phases in GdRu2Si2
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911906007089152 |
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| author | Spethmann, Jonas Khanh, Nguyen Duy Yoshimochi, Haruto Takagi, Rina Hayami, Satoru Motome, Yukitoshi Wiesendanger, Roland Seki, Shinichiro von Bergmann, Kirsten |
| author_facet | Spethmann, Jonas Khanh, Nguyen Duy Yoshimochi, Haruto Takagi, Rina Hayami, Satoru Motome, Yukitoshi Wiesendanger, Roland Seki, Shinichiro von Bergmann, Kirsten |
| contents | The two stable surfaces of GdRu2Si2 are studied using spin-polarized scanning tunneling microscopy (SP-STM). Depending on the applied magnetic field different magnetic phases have been found and the presented measurements are in agreement with the respective previously proposed multi-Q spin textures. In particular the multi-Q nature of the zero magnetic field state, for which previous experiments could not rule out the coexistence of single-Q states, can be confirmed by our spin-resolved measurements on the Si-terminated surface. The surfaces of GdRu2Si2 exhibit strong magnetism-induced modulations of the spin-averaged density of states. We find that while the magnetic contribution to the tunnel signal can be clearly identified for the Si-terminated surface this proves to be much more difficult for the Gd-terminated surface. However, the magnetic field dependent spatial modulations on the Gd-terminated surface demonstrate that additional magnetic phase transitions occur for the surface layer compared to those identified for bulk GdRu2Si2 and possible spin textures are presented. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_18026 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | SP-STM study of the multi-Q phases in GdRu2Si2 Spethmann, Jonas Khanh, Nguyen Duy Yoshimochi, Haruto Takagi, Rina Hayami, Satoru Motome, Yukitoshi Wiesendanger, Roland Seki, Shinichiro von Bergmann, Kirsten Materials Science Mesoscale and Nanoscale Physics The two stable surfaces of GdRu2Si2 are studied using spin-polarized scanning tunneling microscopy (SP-STM). Depending on the applied magnetic field different magnetic phases have been found and the presented measurements are in agreement with the respective previously proposed multi-Q spin textures. In particular the multi-Q nature of the zero magnetic field state, for which previous experiments could not rule out the coexistence of single-Q states, can be confirmed by our spin-resolved measurements on the Si-terminated surface. The surfaces of GdRu2Si2 exhibit strong magnetism-induced modulations of the spin-averaged density of states. We find that while the magnetic contribution to the tunnel signal can be clearly identified for the Si-terminated surface this proves to be much more difficult for the Gd-terminated surface. However, the magnetic field dependent spatial modulations on the Gd-terminated surface demonstrate that additional magnetic phase transitions occur for the surface layer compared to those identified for bulk GdRu2Si2 and possible spin textures are presented. |
| title | SP-STM study of the multi-Q phases in GdRu2Si2 |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2405.18026 |