Vanishing magnetic interactions in ferromagnetic thin films
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/237672
- author
- Hunter Dunn, Jonathan LU ; Karis, O ; Andersson, C ; Arvanitis, D ; Carr, R ; Abrikosov, I A ; Sanyal, B ; Bergqvist, L and Eriksson, O
- organization
- publishing date
- 2005
- 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
- pmid:16090342
- 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
- 2016-04-01 11:55:21
- date last changed
- 2022-01-26 20:16:04
@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}}, doi = {{10.1103/PhysRevLett.94.217202}}, volume = {{94}}, year = {{2005}}, }