Spin Hall magnetoresistance and spin Seebeck effect in Pt |CoCr₂O₄ heterostructures.

IF 7.4 3区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Science and Technology of Advanced Materials Pub Date : 2025-02-03 eCollection Date: 2025-01-01 DOI:10.1080/14686996.2025.2457320

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

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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 $_{2}$ O $_{4}$ (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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来源期刊

Science and Technology of Advanced Materials 工程技术-材料科学：综合

CiteScore

10.60

自引率

3.60%

发文量

审稿时长

4.8 months

期刊介绍： Science and Technology of Advanced Materials (STAM) is a leading open access, international journal for outstanding research articles across all aspects of materials science. Our audience is the international community across the disciplines of materials science, physics, chemistry, biology as well as engineering. The journal covers a broad spectrum of topics including functional and structural materials, synthesis and processing, theoretical analyses, characterization and properties of materials. Emphasis is placed on the interdisciplinary nature of materials science and issues at the forefront of the field, such as energy and environmental issues, as well as medical and bioengineering applications. Of particular interest are research papers on the following topics: Materials informatics and materials genomics Materials for 3D printing and additive manufacturing Nanostructured/nanoscale materials and nanodevices Bio-inspired, biomedical, and biological materials; nanomedicine, and novel technologies for clinical and medical applications Materials for energy and environment, next-generation photovoltaics, and green technologies Advanced structural materials, materials for extreme conditions.