Spin-phonon interaction and mode softening in NiF₂

dc.contributor.author	Lockwood, D.J.
dc.date.accessioned	2018-02-09T11:11:00Z
dc.date.available	2018-02-09T11:11:00Z
dc.date.issued	2002
dc.identifier.citation	Spin-phonon interaction and mode softening in NiF₂ / D.J. Lockwood // Физика низких температур. — 2002. — Т. 28, № 7. — С. 709-715. — Бібліогр.: 21 назв. — англ.	uk_UA
dc.identifier.issn	0132-6414
dc.identifier.other	PACS: 78.30.Hv, 75.50.Ee, 63.20.Dj, 63.20.Kr
dc.identifier.uri	http://dspace.nbuv.gov.ua/handle/123456789/130240
dc.description.abstract	The temperature dependence of the four Raman-active phonons in NiF₂ is investigated at temperatures above and below the antiferromagnetic ordering temperature of TN=73 K. All four modes exhibit distinct anomalies in their intensities and frequencies near TN due to spin–phonon coupling. The phonon linewidths also exhibit weak anomalies. From the temperature dependences of the phonon frequencies, estimates are made of the spin–phonon coupling coefficients. The B1g phonon exhibits anomalous mode softening with decreasing temperature from 300 K to TN.	uk_UA
dc.description.sponsorship	The expert technical assistance of H. J. Labbe in the Raman measurements is gratefully acknoweledged.	uk_UA
dc.language.iso	en	uk_UA
dc.publisher	Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України	uk_UA
dc.relation.ispartof	Физика низких температур
dc.subject	Магнетизм	uk_UA
dc.title	Spin-phonon interaction and mode softening in NiF₂	uk_UA
dc.type	Article	uk_UA
dc.status	published earlier	uk_UA