Influence of a static electric field on magnetic materials monitored by X-ray magnetic circular dichroism

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00579216" target="_blank" >RIV/68378271:_____/23:00579216 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.elspec.2023.147386" target="_blank" >https://doi.org/10.1016/j.elspec.2023.147386</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.elspec.2023.147386" target="_blank" >10.1016/j.elspec.2023.147386</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of a static electric field on magnetic materials monitored by X-ray magnetic circular dichroism

Popis výsledku v původním jazyce

The magnetic circular X-ray dichroism (XMCD) in X-ray absorption spectroscopy (XAS) is used to monitor response of a magnetic system to an external perturbation. Application of a static external electric field may just lead to a charge rearrangement or to a steady electric current. The first situation can be handled with minor modifications of the standard well established schemes to calculate XAS and XMCD spectra. For the second case, more advanced schemes have to be used that account for the steady-state out-of-equilibrium situation. It is shown, that this can indeed be achieved by making use of the Keldysh non-equilibrium Green function formalism to express in particular the X-ray absorption coefficient in terms of the corresponding greater Green function. As an alternative approach, a bi-linear response formalism is presented that can be used to calculate the modification of the XMCD spectra due to the electric field directly.n

Název v anglickém jazyce

Influence of a static electric field on magnetic materials monitored by X-ray magnetic circular dichroism

Popis výsledku anglicky

The magnetic circular X-ray dichroism (XMCD) in X-ray absorption spectroscopy (XAS) is used to monitor response of a magnetic system to an external perturbation. Application of a static external electric field may just lead to a charge rearrangement or to a steady electric current. The first situation can be handled with minor modifications of the standard well established schemes to calculate XAS and XMCD spectra. For the second case, more advanced schemes have to be used that account for the steady-state out-of-equilibrium situation. It is shown, that this can indeed be achieved by making use of the Keldysh non-equilibrium Green function formalism to express in particular the X-ray absorption coefficient in terms of the corresponding greater Green function. As an alternative approach, a bi-linear response formalism is presented that can be used to calculate the modification of the XMCD spectra due to the electric field directly.n

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

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Electron Spectroscopy and Related Phenomena

ISSN

0368-2048

e-ISSN

1873-2526

Svazek periodika

268

Číslo periodika v rámci svazku

Oct.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

147386

Kód UT WoS článku

001124553500001

EID výsledku v databázi Scopus

2-s2.0-85171341514