Aqeel, Aisha and Kronseder, Matthias and Vlietstra, Nynke and Huebl, Hans and Heuver, Jeroen A. and Noheda, Beatriz and Herrero-Martin, Javier and Pellegrin, Eric and Vasili, Hari B. and Mostovoy, Maxim and Back, Christian (2025) Spin Hall magnetoresistance and spin Seebeck effect in Pt |CoCr2O4 heterostructures. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 26 (1): 2457320. ISSN 1468-6996, 1878-5514
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This study delves into spin current-induced phenomena, such as spin-Hall magnetoresistance and the spin Seebeck effect within Pt films deposited on a noncollinear magnet, CoCr$_2$ 2O$_4$ 4 (CCO), particularly at low temperatures. Detailed investigation of the angular dependencies of spin Hall magnetoresistance (SMR) and spin Seebeck effect (SSE) was carried out. The temperature-dependent behavior of both SMR and SSE signals exhibits a discernible variation correlated with different magnetic phases of CCO. To distinguish the contributions arising from magnetic proximity effects, we conducted X-ray magnetic dichroism (XMCD) at the Pt-M$_3$ 3 edge. XMCD data from Pt/CCO heterostructures suggest that any magnetic moment associated with Pt, if present, is below the detection limit. This supports the notion that the observed signals primarily stem from SMR and SSE. This study offers insights into spin-current-driven phenomena, paving the way for potential spintronic applications.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; Spin Hall effect; magnetoresistance; magnetic proximity effects; noncollinear magnet; spin spiral; conicity |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Prof. Jörg Wunderlich |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Jul 2026 09:03 |
| Last Modified: | 28 Jul 2026 09:03 |
| URI: | https://pred.uni-regensburg.de/id/eprint/67313 |
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