Evidence for low-temperature internal dynamics in Cu12As4S13 according to copper NQR and nuclear relaxation

dc.contributor.author	Gainov R.
dc.contributor.author	Dooglav A.
dc.contributor.author	Pen'kov I.
dc.date.accessioned	2018-09-18T20:31:49Z
dc.date.available	2018-09-18T20:31:49Z
dc.date.issued	2006
dc.identifier.issn	0038-1098
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/140828
dc.description.abstract	63,65Cu nuclear quadrupole resonance (NQR) was applied to study the natural mineral Cu12As4S13 (tennantite) in the temperature range 4.2-210 K. The obtained results point to the presence of field fluctuations caused by internal motions in tennantite. Consistently with the crystal structure, the experimental data can be described by an occurrence of a magnetic phase transition, which takes place near 65 K. The low-temperature phase is characterized by Cu(II) electron magnetic moments freezing in the form of a spin-glass-like constitution. © 2006 Elsevier Ltd. All rights reserved.
dc.relation.ispartofseries	Solid State Communications
dc.subject	D. Valence fluctuations
dc.subject	E. Nuclear resonances
dc.title	Evidence for low-temperature internal dynamics in Cu12As4S13 according to copper NQR and nuclear relaxation
dc.type	Article
dc.relation.ispartofseries-issue	11-12
dc.relation.ispartofseries-volume	140
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	544
dc.source.id	SCOPUS00381098-2006-140-1112-SID33750501979

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