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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
Type
journal article in Web of Science
Language
English
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.
Keywords
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.
Released
1. 5. 2018
Publisher
AIP Publishing
ISBN
2329-7778
Periodical
Structural Dynamics
Year of study
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