Publication result detail

Laser induced phase transition in epitaxial FeRh layers studied by pump-probe valence band photoemission

PRESSACCO, F.; UHLÍŘ, V.; GATTI, M.; NICOLAOU, A.; BENDOUNAN, A.; ARREGI URIBEETXEBARRIA, J.; PATEL, S.; FULLERTON, E.; KRIZMANCIC, D.; SIROTTI, F.

Original Title

Laser induced phase transition in epitaxial FeRh layers studied by pump-probe valence band photoemission

English Title

Laser induced phase transition in epitaxial FeRh layers studied by pump-probe valence band photoemission

Type

WoS Article

Original Abstract

We use time-resolved X-ray photoelectron spectroscopy to probe the electronic and magnetization dynamics in FeRh films after ultrafast laser excitations. We present experimental and theoretical results which investigate the electronic structure of FeRh during the first-order phase transition, identifying a clear signature of the magnetic phase.We find that a spin polarized feature at the Fermi edge is a fingerprint of the magnetic status of the system that is independent of the long-range ferromagnetic alignment of the magnetic domains.We use this feature to follow the phase transition induced by a laser pulse in a pump-probe experiment and find that the magnetic transition occurs in less than 50 ps and reaches its maximum in 100 ps.

English abstract

We use time-resolved X-ray photoelectron spectroscopy to probe the electronic and magnetization dynamics in FeRh films after ultrafast laser excitations. We present experimental and theoretical results which investigate the electronic structure of FeRh during the first-order phase transition, identifying a clear signature of the magnetic phase.We find that a spin polarized feature at the Fermi edge is a fingerprint of the magnetic status of the system that is independent of the long-range ferromagnetic alignment of the magnetic domains.We use this feature to follow the phase transition induced by a laser pulse in a pump-probe experiment and find that the magnetic transition occurs in less than 50 ps and reaches its maximum in 100 ps.

Keywords

MAGNETIC-MOMENTS; DYNAMICS; SURFACE; SPIN

Key words in English

MAGNETIC-MOMENTS; DYNAMICS; SURFACE; SPIN

Authors

PRESSACCO, F.; UHLÍŘ, V.; GATTI, M.; NICOLAOU, A.; BENDOUNAN, A.; ARREGI URIBEETXEBARRIA, J.; PATEL, S.; FULLERTON, E.; KRIZMANCIC, D.; SIROTTI, F.

RIV year

2019

Released

01.05.2018

Publisher

AIP Publishing

ISBN

2329-7778

Periodical

Structural Dynamics

Volume

5

Number

3

State

United States of America

Pages from

034501-1

Pages to

034501-11

Pages count

11

URL

http://dx.doi.org/10.1063/1.5027809

Full text in the Digital Library

http://hdl.handle.net/11012/85338

Documents

Laser induced phase