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Muon spin precession in ferromagnetic DyAl2
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
2014 (English)In: 13TH INTERNATIONAL CONFERENCE ON MUON SPIN ROTATION, RELAXATION AND RESONANCE, 2014, Vol. 551, 012018Conference paper, Published paper (Refereed)
Abstract [en]

The Laves phase intermetallics REAl2 were studied by mu,SR over several decades. Results had mainly been obtained for the temperature and field dependencies of relaxation rates in the paramagnetic state. However, it turned out that spontaneous precession signals in the ordered magnetic state were very difficult to observe. We report here the observation a weak precession signal in a single crystalline sample of DyAl2. The precession signal seen has low asymmetry and is heavily damped. This is understood with the notion that the magnetic structure of DyAl2 splits the internal field at the interstitial muon stopping site into several components, and that of those only one of the field components leads to the visible precession signal. The observed temperature dependence of the precession frequency is compatible with the change of easy axis of magnetization at T = 40K.

Place, publisher, year, edition, pages
2014. Vol. 551, 012018
Series
Journal of Physics Conference Series, ISSN 1742-6588 ; 551
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-246870DOI: 10.1088/1742-6596/551/1/012018ISI: 000347715800018OAI: oai:DiVA.org:uu-246870DiVA: diva2:794381
Conference
13th International Conference on Muon Spin Rotation, Relaxation and Resonance (MuSR), JUN 01-06, 2014, Grindelwald, SWITZERLAND
Available from: 2015-03-11 Created: 2015-03-11 Last updated: 2015-03-11Bibliographically approved

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Hartmann, OlaWäppling, Roger

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