Towards robust dichroism in angle-resolved photoemission

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F24%3A43972529" target="_blank" >RIV/49777513:23640/24:43972529 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1038/s42005-024-01762-y" target="_blank" >https://doi.org/10.1038/s42005-024-01762-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s42005-024-01762-y" target="_blank" >10.1038/s42005-024-01762-y</a>

Result language

angličtina

Original language name

Towards robust dichroism in angle-resolved photoemission

Original language description

Dichroic techniques are highly relevant in the field of topological materials, layered systems, and spinpolarized electronic states. Dichroism in angle-resolved photoemission is per se a matrix element effect, which depends on the initial and final states as well as on the perturbation by the light field. Although matrix element effects in ARPES such as dichroism are important for addressing properties of the initial state wave functions, the results can strongly depend on experimental geometry or final state effects. Combining experimental data on bulk WSe2 taken at soft x-ray photon energies with state-of-the-art photoemission calculations, we demonstrate that a dichroic observable called timereversal dichroism remains unaffected against variation of photon energy, light polarization, and the angle of incidence. We demonstrate a direct link of TRDAD obtained with both linearly and circularly polarized photons to the initial state properties indicating its broad applicability. The robustness of this matrix element effect indicates a considerable benefit over other dichroic techniques and encourages further experimental and theoretical investigations.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Communications Physics

ISSN

2399-3650

e-ISSN

2399-3650

Volume of the periodical

7

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

6

Pages from-to

—

UT code for WoS article

001286513900002

EID of the result in the Scopus database

2-s2.0-85200851035