MAGNETIC CIRCULAR-DICHROISM IN COBALT FILMS OBSERVED WITH SCANNING-TUNNELING-MICROSCOPE-EXCITED FLUORESCENCE

Authors
DEPARGA ALV ALVARADO SF
Citation
Alv. Deparga et Sf. Alvarado, MAGNETIC CIRCULAR-DICHROISM IN COBALT FILMS OBSERVED WITH SCANNING-TUNNELING-MICROSCOPE-EXCITED FLUORESCENCE, Physical review letters, 72(23), 1994, pp. 3726-3729
Citations number
24
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
72
Issue
23
Year of publication
1994
Pages
3726 - 3729
Database
ISI
SICI code
0031-9007(1994)72:23<3726:MCICFO>2.0.ZU;2-9
Abstract
We report on experiments showing that magnetism can be probed by means of the circular polarization of the fluorescence that is excited when charge carriers are injected into a magnetic surface with the tip of scanning tunneling microscope. We attribute this result to the interpl ay of the spin-orbit and the exchange interactions which gives rise to coupling between the electron-spin polarization of the valence bands of the ferromagnet and the photon spin.