Journal Article

FZJ-2015-03475

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Microscopic picture of magnetic correlation with loss of uniaxial anisotropy upon swift ion beam irradiation in an interlayer coupled system

Paul, A. (Corresponding Author) ; Mattauch, S.FZJ*

2010
Dt. Physikalische Ges. [Bad Honnef]

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Please use a persistent id in citations: http://hdl.handle.net/2128/11516  doi:10.1088/1367-2630/12/10/103003

Abstract: Exclusive evidence of magnetic structure modification has been revealed by depth-sensitive polarized neutron scattering measurements in an antiferromagnetically coupled specimen upon swift heavy ion irradiation. The effects are independent of any structural modifications within the system (such as intermixing or roughness) that may normally have contributed to the changes in magnetic structure as well. The modifications include (a) the loss of uniaxial anisotropy, (b) changes in the variation of the mean magnetization angle and (c) changes in the variation of the lateral and longitudinal magnetic correlation lengths. We explain the changes within the thermal spike model. The possibility of controlling local magnetization can be foreseen from these results, which can be done even without damaging the structure.

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)
3. Streumethoden (PGI-4)
4. JARA-FIT (JARA-FIT)

Research Program(s):

1. 422 - Spin-based and quantum information (POF2-422) (POF2-422)
2. 424 - Exploratory materials and phenomena (POF2-424) (POF2-424)
3. 542 - Neutrons (POF2-542) (POF2-542)
4. 544 - In-house Research with PNI (POF2-544) (POF2-544)
5. 54G - JCNS (POF2-54G24) (POF2-54G24)

Experiment(s):

1. MARIA: Magnetic reflectometer with high incident angle (NL5N)
2. TREFF: Neutronenreflektometer (NL5S)

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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