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Aqeel, Aisha ; Kronseder, Matthias ; Vlietstra, Nynke ; Huebl, Hans ; Heuver, Jeroen A. ; Noheda, Beatriz ; Herrero-Martín, Javier ; Pellegrin, Eric ; Vasili, Hari B. ; Mostovoy, Maxim ; Back, Christian

Spin Hall magnetoresistance and spin Seebeck effect in Pt |CoCr 2 O 4 heterostructures

Aqeel, Aisha , Kronseder, Matthias , Vlietstra, Nynke, Huebl, Hans, Heuver, Jeroen A., Noheda, Beatriz, Herrero-Martín, Javier, Pellegrin, Eric, Vasili, Hari B., Mostovoy, Maxim and Back, Christian (2025) Spin Hall magnetoresistance and spin Seebeck effect in Pt |CoCr 2 O 4 heterostructures. Science and Technology of Advanced Materials 26 (1).

Date of publication of this fulltext: 06 Mar 2025 14:02
Article
DOI to cite this document: 10.5283/epub.75162


Abstract

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 2O 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 ...

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 2O 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 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.



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Details

Item typeArticle
Journal or Publication TitleScience and Technology of Advanced Materials
Publisher:Taylor & Francis
Volume:26
Number of Issue or Book Chapter:1
Date12 February 2025
InstitutionsPhysics > Institute of Experimental and Applied Physics > Prof. Jörg Wunderlich
Identification Number
ValueType
10.1080/14686996.2025.2457320DOI
KeywordsSpin Hall effect, magnetoresistance, magnetic proximity effects, noncollinear magnet, spin spiral, conicity
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgPartially
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-751621
Item ID75162

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