Specific heat study of magnetic excitations in a one-dimensional S =1 Heisenberg magnet with strong planar anisotropy
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Specific heat study of magnetic excitations in a one-dimensional S =1 Heisenberg magnet with strong planar anisotropy
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| Creator |
Feher, A.
Orendáč, M. Orendáčová, A. Čižmár, E. |
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| Subject |
Сильно коррелированные системы и высокотемпературная сверхпроводимость
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| Description |
The results of experimental studies of the specific heat of the magnetic chain compounds Ni(C₂H₈N₂)₂Ni(CN)₄, Ni(C₁₁H₁₀N₂O)₂Ni(CN)₄, and Ni(C₁₀H₈N₂)₂Ni(CN)₄⋅H₂O are reported. All compounds are identified as S=1 planar Heisenberg magnetic chains with large planar anisotropy and different values of the in-plane anisotropy constant. The low-temperature specific heat data are interpreted assuming the existence of noninteracting excitons and antiexcitons as elementary excitations from the singlet-ground state. The extended strong-coupling model is used for analysis of the data at higher temperatures. The applicability of the models used with respect to the value of the in-plane anisotropy is discussed.
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| Date |
2018-02-09T10:55:25Z
2018-02-09T10:55:25Z 2002 |
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| Type |
Article
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| Identifier |
Specific heat study of magnetic excitations in a one-dimensional S =1 Heisenberg magnet with strong planar anisotropy / A.Feher, M.Orendáč, A.Orendáčová, E.Čižmár // Физика низких температур. — 2002. — Т. 28, № 7. — С. 768-773. — Бібліогр.: 12 назв. — англ.
0132-6414 PACS: 75.40.Cx, 71.20.Be, 75.50.Ee http://dspace.nbuv.gov.ua/handle/123456789/130235 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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