BMOLogo
Publications

LMU München
Fakultät für Physik


Home

General
Research
Members
Publications
  All Publications
  PhD Theses
  Master Theses
  Search





Impressum
(c) 2002 BMO

"Spin Polarization and Attosecond Time Delay in Photoemission from Spin Degenerate States of Solids"
M. Fanciulli, H. Volfová, S. Muff, J. Braun, H. Ebert, J. Minar, U. Heinzmann, J. H. Dil
Phys. Rev. Lett. 118, 067402 (2017).


Abstract:
After photon absorption, electrons from a dispersive band of a solid require a finite time in the photoemission process before being photoemitted as free particles, in line with recent attosecond-resolved photoemission experiments. According to the Eisenbud-Wigner-Smith model, the time delay is due to a phase shift of different transitions that occur in the process. Such a phase shift is also at the origin of the angular dependent spin polarization of the photoelectron beam, observable in spin degenerate systems without angular momentum transfer by the incident photon. We propose a semiquantitative model which permits us to relate spin and time scales in photoemission from condensed matter targets and to better understand spin- and angle-resolved photoemission spectroscopy (SARPES) experiments on spin degenerate systems. We also present the first experimental determination by SARPES of this time delay in a dispersive band, which is found to be greater than 26 as for electrons emitted from the sp-bulk band of the model system Cu(111).

This publication has not been written at BMO

BMO authors (in alphabetic order):
Henrieta Derondeau


WWW-Version

DOI-Version

mailto: webmaster
Letzte Änderung: 2016-09-14 13:34
-------------------------------------------
nav.inc[abfrage], query:Delete from kurzzeitstatistik where TS<"1714146585"
-------------------------------------------
ERRNO: 0
-------------------------------------------
RESULT:
-------------------------------------------
ABORTED
-------------------------------------------
-------------------------------------------
nav.inc[abfrage], query:INSERT INTO kurzzeitstatistik (Datei, Adresse, id, TS) VALUES ("", "13.58.151.231" , "3049" , "1714147185 " )
-------------------------------------------
ERRNO: 0
-------------------------------------------
RESULT:
-------------------------------------------
ABORTED
-------------------------------------------
-------------------------------------------
nav.inc[abfrage], query:INSERT INTO statistik (Datei, Adresse, id, TS, Laufzeit) VALUES ("", "13.58.151.231" , "3049" , "1714147185 ","" )
-------------------------------------------
ERRNO: 0
-------------------------------------------
RESULT:
-------------------------------------------
ABORTED
-------------------------------------------