Spin pumping at terahertz nutation resonances

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00552517" target="_blank" >RIV/68378271:_____/21:00552517 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0327672" target="_blank" >http://hdl.handle.net/11104/0327672</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.104.214426" target="_blank" >10.1103/PhysRevB.104.214426</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spin pumping at terahertz nutation resonances

Popis výsledku v původním jazyce

We investigate spin pumping current injected by the nutation resonances of a ferromagnet (FM) or an antiferromagnet (AFM) into an adjacent metal. Comparing the dc spin pumping current between the normal precession and the nutation resonances, we find that the ratio of spin pumping current at the nutation resonance to the precession resonance is more pronounced in AFMs. We further show that the spin pumping current injected by the nutation resonance is opposite in sign as compared with the normal precession mode. This could offer a useful experimental signature for identifying such nutation resonances. Analyzing the nature of the nutational eigenmodes, we show that the sign change in spin current is rooted in a reversal of the precession sense for the nutation mode(s). Furthermore, the nutational modes in AFMs are found to be dominated by precession of one of the two sublattices only.

Název v anglickém jazyce

Spin pumping at terahertz nutation resonances

Popis výsledku anglicky

We investigate spin pumping current injected by the nutation resonances of a ferromagnet (FM) or an antiferromagnet (AFM) into an adjacent metal. Comparing the dc spin pumping current between the normal precession and the nutation resonances, we find that the ratio of spin pumping current at the nutation resonance to the precession resonance is more pronounced in AFMs. We further show that the spin pumping current injected by the nutation resonance is opposite in sign as compared with the normal precession mode. This could offer a useful experimental signature for identifying such nutation resonances. Analyzing the nature of the nutational eigenmodes, we show that the sign change in spin current is rooted in a reversal of the precession sense for the nutation mode(s). Furthermore, the nutational modes in AFMs are found to be dominated by precession of one of the two sublattices only.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

2469-9969

Svazek periodika

104

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

214426

Kód UT WoS článku

000734362400003

EID výsledku v databázi Scopus

2-s2.0-85122034105