dc.contributor.author | Kustov, Sergey | |
dc.contributor.author | Liubimova, Iuliia | |
dc.contributor.author | Corró, Miguel | |
dc.contributor.author | Torrens Serra, Joan | |
dc.contributor.author | Wang, Xiebin | |
dc.contributor.author | Haines, Charles R. S. | |
dc.contributor.author | Salje, Ekhard K. H. | |
dc.date.accessioned | 2019-03-25T12:19:37Z | |
dc.identifier.uri | http://hdl.handle.net/11201/149166 | |
dc.description.abstract | [eng] The spiral antiferromagnetic phase of polycrystalline dysprosium between 140 K and the Néel temperature at 178 K and its domain wall (DW) dynamics were investigated using high-resolution ultrasonic spectroscopy. Two kinetic processes of quasi-static DW motion occur under non-isothermal and isothermal conditions. A 'fast' process is proportional to the rate of the temperature change and results in a new category of anelastic phenomena: magnetic transient ultrasonic internal friction (IF). This IF, related to fast moving magnetic DWs, decays rapidly after interruptions of cooling/heating cycles. A second, 'slow' kinetic process is seen as logarithmic IF relaxation under isothermal conditions. This second process is glass-like and results in memory and temperature chaos effects. Low-frequency thermal fluctuations of DWs, previously detected by X-ray photon correlation spectroscopy, are related to critical fluctuations with Brownian motion-like dynamics of DWs. | |
dc.format | application/pdf | |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1038/s41598-019-41566-7 | |
dc.relation.ispartof | Scientific Reports, 2019, vol. 9, num. 5076, p. 1-9 | |
dc.rights | cc-by (c) Kustov, Sergey et al., 2019 | |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | |
dc.subject.classification | 53 - Física | |
dc.subject.other | 53 - Physics | |
dc.title | Temperature Chaos, Memory Effect, and Domain Fluctuations in the Spiral Antiferromagnet Dy | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:eu-repo/semantics/publishedVersion | |
dc.date.updated | 2019-03-25T12:19:38Z | |
dc.date.embargoEndDate | ||
dc.embargo | ||
dc.rights.accessRights | info:eu-repo/semantics/embargoedAccess | |
dc.identifier.doi | https://doi.org/10.1038/s41598-019-41566-7 |
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