Spatio-temporal migration of antiferromagnetic domain walls in Sr2IrO4
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918194026905600 |
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| author | Robinson, Ian Yang, David Harder, Ross Sheyfer, Dina Wu, Longlong Griffiths, Jack Bozin, Emil Dean, Mark P. M. Liu, Jialun Zhao, Hengdi Cao, Gang Rodriguez-Fernandez, Angel Pudell, Jan-Etienne Shayduk, Roman Wrigley, James Zozulya, Alexey Rysov, Rustam Leonau, Aliaksandr Boesenberg, Ulrike Hallmann, Joerg Madsen, Anders |
| author_facet | Robinson, Ian Yang, David Harder, Ross Sheyfer, Dina Wu, Longlong Griffiths, Jack Bozin, Emil Dean, Mark P. M. Liu, Jialun Zhao, Hengdi Cao, Gang Rodriguez-Fernandez, Angel Pudell, Jan-Etienne Shayduk, Roman Wrigley, James Zozulya, Alexey Rysov, Rustam Leonau, Aliaksandr Boesenberg, Ulrike Hallmann, Joerg Madsen, Anders |
| contents | By laser pump-probe time-resolved coherent magnetic X-ray diffraction imaging, we have measured the migration velocity of antiferromagnetic domain walls in the Mott insulator Sr2IrO4 at 100 K. During the laser-induced demagnetization, we observe domain walls moving at 3x10^6 m/s, significantly faster than acoustic velocities. This is understood to arise from a purely electronic spin contribution to the magnetic structure without any role for coupling to the crystal lattice. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_07359 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spatio-temporal migration of antiferromagnetic domain walls in Sr2IrO4 Robinson, Ian Yang, David Harder, Ross Sheyfer, Dina Wu, Longlong Griffiths, Jack Bozin, Emil Dean, Mark P. M. Liu, Jialun Zhao, Hengdi Cao, Gang Rodriguez-Fernandez, Angel Pudell, Jan-Etienne Shayduk, Roman Wrigley, James Zozulya, Alexey Rysov, Rustam Leonau, Aliaksandr Boesenberg, Ulrike Hallmann, Joerg Madsen, Anders Strongly Correlated Electrons By laser pump-probe time-resolved coherent magnetic X-ray diffraction imaging, we have measured the migration velocity of antiferromagnetic domain walls in the Mott insulator Sr2IrO4 at 100 K. During the laser-induced demagnetization, we observe domain walls moving at 3x10^6 m/s, significantly faster than acoustic velocities. This is understood to arise from a purely electronic spin contribution to the magnetic structure without any role for coupling to the crystal lattice. |
| title | Spatio-temporal migration of antiferromagnetic domain walls in Sr2IrO4 |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2511.07359 |