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Vanishing magnetic interactions in ferromagnetic thin films

Hunter Dunn, Jonathan LU ; Karis, O; Andersson, C; Arvanitis, D; Carr, R; Abrikosov, I A; Sanyal, B; Bergqvist, L and Eriksson, O (2005) In Physical Review Letters 94(21).
Abstract
We have used element-specific hysteresis measurements, based on the x-ray magnetic circular dichroism technique, to investigate magnetic trilayer structures composed of Fe and Ni layers. Within a critical regime we have discovered a class of structures in which the exchange interaction, the mechanism responsible for the macroscopic magnetism, can become vanishingly small. The experimental observations are supported by first principles theory and are explained as arising from a cancellation of several competing magnetic interactions. Hence, we have discovered a system with a novel exchange interaction between magnetic layers in direct contact that replaces the conventional exchange interaction in ferromagnets.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
94
issue
21
publisher
American Physical Society
external identifiers
  • wos:000229543900039
  • scopus:27744463651
ISSN
1079-7114
DOI
10.1103/PhysRevLett.94.217202
language
English
LU publication?
yes
id
f08104a9-af1f-4fb2-bc67-f0a6d6a8d35a (old id 237672)
date added to LUP
2007-09-21 11:34:59
date last changed
2017-01-01 04:40:11
@article{f08104a9-af1f-4fb2-bc67-f0a6d6a8d35a,
  abstract     = {We have used element-specific hysteresis measurements, based on the x-ray magnetic circular dichroism technique, to investigate magnetic trilayer structures composed of Fe and Ni layers. Within a critical regime we have discovered a class of structures in which the exchange interaction, the mechanism responsible for the macroscopic magnetism, can become vanishingly small. The experimental observations are supported by first principles theory and are explained as arising from a cancellation of several competing magnetic interactions. Hence, we have discovered a system with a novel exchange interaction between magnetic layers in direct contact that replaces the conventional exchange interaction in ferromagnets.},
  author       = {Hunter Dunn, Jonathan and Karis, O and Andersson, C and Arvanitis, D and Carr, R and Abrikosov, I A and Sanyal, B and Bergqvist, L and Eriksson, O},
  issn         = {1079-7114},
  language     = {eng},
  number       = {21},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Vanishing magnetic interactions in ferromagnetic thin films},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.94.217202},
  volume       = {94},
  year         = {2005},
}