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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| Дата: | 2002 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2002
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/130240 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-130240 |
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dspace |
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irk-123456789-1302402018-02-10T03:04:35Z Spin-phonon interaction and mode softening in NiF₂ Lockwood, D.J. Магнетизм 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. 2002 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/130240 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Магнетизм Магнетизм |
| spellingShingle |
Магнетизм Магнетизм Lockwood, D.J. Spin-phonon interaction and mode softening in NiF₂ Физика низких температур |
| 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. |
| format |
Article |
| author |
Lockwood, D.J. |
| author_facet |
Lockwood, D.J. |
| author_sort |
Lockwood, D.J. |
| title |
Spin-phonon interaction and mode softening in NiF₂ |
| 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 |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2002 |
| topic_facet |
Магнетизм |
| url |
http://dspace.nbuv.gov.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. |
| series |
Физика низких температур |
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2023-10-18T20:59:34Z |
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