Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00638377" target="_blank" >RIV/68378271:_____/25:00638377 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/25:10501307

Výsledek na webu

<a href="https://doi.org/10.1103/hksk-qxl5" target="_blank" >https://doi.org/10.1103/hksk-qxl5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/hksk-qxl5" target="_blank" >10.1103/hksk-qxl5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface

Popis výsledku v původním jazyce

The resistance of a heavy metal can be modulated by an adjacent magnetic material through the combined effects of the spin Hall effect, inverse spin Hall effect, and dissipation of the spin accumulation at the interface. This phenomenon is known as the spin Hall magnetoresistance. The dissipation of the spin accumulation can occur via various mechanisms, with spin-transfer torque being the most extensively studied. In this work, we report the observation of spin Hall magnetoresistance at the interface between platinum and an insulating altermagnetic candidate, Ba2CoGe2O7. Our findings reveal that this heterostructure exhibits a elatively large spin Hall magnetoresistance signal, which is anisotropic with respect to the crystal orientation of the current channel. We explore and rule out several potential explanations for this anisotropy and propose that our results may be understood in the context of the anisotropies of the spin current channels across the Pt/altermagnetic Ba2CoGe2O7 interface.

Název v anglickém jazyce

Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface

Popis výsledku anglicky

The resistance of a heavy metal can be modulated by an adjacent magnetic material through the combined effects of the spin Hall effect, inverse spin Hall effect, and dissipation of the spin accumulation at the interface. This phenomenon is known as the spin Hall magnetoresistance. The dissipation of the spin accumulation can occur via various mechanisms, with spin-transfer torque being the most extensively studied. In this work, we report the observation of spin Hall magnetoresistance at the interface between platinum and an insulating altermagnetic candidate, Ba2CoGe2O7. Our findings reveal that this heterostructure exhibits a elatively large spin Hall magnetoresistance signal, which is anisotropic with respect to the crystal orientation of the current channel. We explore and rule out several potential explanations for this anisotropy and propose that our results may be understood in the context of the anisotropies of the spin current channels across the Pt/altermagnetic Ba2CoGe2O7 interface.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Materials

ISSN

2475-9953

e-ISSN

2475-9953

Svazek periodika

9

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

084403

Kód UT WoS článku

001546424100001

EID výsledku v databázi Scopus

2-s2.0-105022974010