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Interface magnetic and collective electronic modes in randomly layered metallic structures

Authors
Journal
Vacuum
0042-207X
Publisher
Elsevier
Publication Date
Volume
41
Identifiers
DOI: 10.1016/0042-207x(90)93974-n

Abstract

Abstract Interface magnetic modes and collective electronic excitations (plasmons) in layered structures consisting of alternating magnetic metal and nonmagnetic insulator have been analysed theoretically within the classical approximation. The film thicknesses have been assumed to be distributed randomly. All collective states, magnetic and electronic, are then localized on a finite number of layers, contrary to the corresponding periodic case (superlattice) where they are of extended nature. The localization length and density of states of the magnetostatic modes and plasmons have been calculated numerically.

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