Spin-phonon interaction and mode softening in NiF₂
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 li...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2002 |
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| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2002
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| Zitieren: | 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. |
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Lockwood, D.J. 2018-02-09T11:11:00Z 2018-02-09T11:11:00Z 2002 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. 0132-6414 PACS: 78.30.Hv, 75.50.Ee, 63.20.Dj, 63.20.Kr https://nasplib.isofts.kiev.ua/handle/123456789/130240 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. The expert technical assistance of H. J. Labbe in the Raman measurements is gratefully acknoweledged. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Магнетизм Spin-phonon interaction and mode softening in NiF₂ Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Spin-phonon interaction and mode softening in NiF₂ |
| spellingShingle |
Spin-phonon interaction and mode softening in NiF₂ Lockwood, D.J. Магнетизм |
| title_short |
Spin-phonon interaction and mode softening in NiF₂ |
| title_full |
Spin-phonon interaction and mode softening in NiF₂ |
| title_fullStr |
Spin-phonon interaction and mode softening in NiF₂ |
| title_full_unstemmed |
Spin-phonon interaction and mode softening in NiF₂ |
| title_sort |
spin-phonon interaction and mode softening in nif₂ |
| author |
Lockwood, D.J. |
| author_facet |
Lockwood, D.J. |
| topic |
Магнетизм |
| topic_facet |
Магнетизм |
| publishDate |
2002 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
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.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/130240 |
| citation_txt |
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. |
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2025-11-30T17:40:21Z |
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2025-11-30T17:40:21Z |
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