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RELAXATION OF THE FIELD COOLED MAGNETIZATION IN 2D CU(MN) FILMS
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
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1994 (English)In: Physica. B, Condensed matter, ISSN 0921-4526, E-ISSN 1873-2135, Vol. 194, 303-304 p.Article in journal (Refereed) Published
Abstract [en]

The relaxation of the field cooled magnetisation of a multilayered 2D Cu(Mn) spin glass film has been investigated in a SQUID-magnetometer. The sample is cooled in a constant magnetic field (10 Oe) from a high temperature, where the magnetisation is at equilibrium, to a temperature below the freezing temperature, T(f). At constant temperature, the magnetisation is then found to increase with time at temperatures near T(f), showing an initial decrease followed by an increase at long time scales at intermediate temperatures and only decreases with time at lower temperatures. The behaviour, including the surprising downward relaxation away from the thermodynamic equilibrium magnetisation, is qualitatively interpreted in terms of a spin glass domain model.

Place, publisher, year, edition, pages
1994. Vol. 194, 303-304 p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-195526DOI: 10.1016/0921-4526(94)90481-2OAI: oai:DiVA.org:uu-195526DiVA: diva2:607970
Note

20th International Conference on Low Temperature Physics, EUGENE, OR, AUG 04-11, 1993

Available from: 2013-02-26 Created: 2013-02-26 Last updated: 2017-12-06

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