Phys. Rev. Lett. 76, 4254–4257 (1996)Interlayer Exchange Coupling: The Effect of Substitutional DisorderReceived 6 February 1996; published in the issue dated 27 May 1996 The effect of substitutional disorder on the interlayer exchange coupling is studied, with focus on the role of the “vertex corrections.” It is proved, on general grounds, that, to first order, the latter do not contribute to the exchange coupling, due to exact cancellation. The applicability of this result for realistic systems is supported by first-principle calculations within the coherent potential approximation, for various disordered systems. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.4254
DOI:
10.1103/PhysRevLett.76.4254
PACS:
75.70.-i, 71.23.-k, 73.20.Dx, 75.30.Et
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.