Spin Polarized Photoemission Studies of Quantum well States in Thin Films

1993 ◽  
Vol 313 ◽  
Author(s):  
P.D. Johnson ◽  
N.B. Brookes ◽  
Y. Chang ◽  
K. Garrison

ABSTRACTSpin polarized photoemission is used to study the electronic structure of noble metals deposited on ferromagnetic substrates. Studies of Ag deposited on an Fe (001) substrate reveal a series of minority spin interface or quantum well states with binding energies dependent on the thickness of the silver. Similar behavior is observed for Cu films deposited on a fee Co (001) substrate. Tight-binding Modeling reproduces many of the observations and shows that hybridization of the sp-bands with the noble metal d-bands cannot be ignored.

1999 ◽  
Vol 203 (1-3) ◽  
pp. 126-128 ◽  
Author(s):  
J.E. Ortega ◽  
A. Närmann ◽  
K.N. Altmann ◽  
W. O'Brien ◽  
D.J. Seo ◽  
...  

1993 ◽  
Vol 313 ◽  
Author(s):  
J. E. Ortega ◽  
F. J. Himpsel ◽  
G. J. Mankey ◽  
R. F. Willis

ABSTRACTWe have searched for the electronic states that mediate oscillatory magnetic coupling in superlattices, and have found strong evidence that these are quantum well states, which are created by quantizing the momentum of s,p-band states perpendicular to the interfaces. The quantum well picture also explains how quantum well states in noble metals become spin-polarized, due to a spin-dependent electron reflectivity at the interface with the ferromagnet. The resulting implications for magnetoresistance are discussed.


2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Mohammed Bouhassoune ◽  
Bernd Zimmermann ◽  
Phivos Mavropoulos ◽  
Daniel Wortmann ◽  
Peter H. Dederichs ◽  
...  

1994 ◽  
Vol 49 (1) ◽  
pp. 332-338 ◽  
Author(s):  
N. V. Smith ◽  
N. B. Brookes ◽  
Y. Chang ◽  
P. D. Johnson

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