On a correlation between EPR data for SASeD doped with Cr³⁺ and soft modes
EPR experimental results obtained for SASeD doped with Cr³⁺ are reported with special emphasis on those observations which reveal the effect of soft modes i.e. the temperature dependence of the DZZ spin- Hamiltonian parameter and the temperature dependence of the EPR linewidth. An extension of the...
Збережено в:
| Дата: | 2007 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2007
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/118069 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | On a correlation between EPR data for SASeD doped with Cr³⁺ and soft modes / I.E. Lipinski, J. Kuriata, N.A. Korynevskii // Condensed Matter Physics. — 2007. — Т. 10, № 1(49). — С. 79-84. — Бібліогр.: 8 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | EPR experimental results obtained for SASeD doped with Cr³⁺ are reported with special emphasis on
those observations which reveal the effect of soft modes i.e. the temperature dependence of the DZZ spin-
Hamiltonian parameter and the temperature dependence of the EPR linewidth. An extension of the twosublattice
model, previously developed and tested for SASD, to include lattice vibrations is presented. The
obtained spectrum of bound excitations for the system investigated supports the idea that soft modes contribute
to the phase transition at TC = 175 K. The anomaly detected at T1 = 150 K has only a quasisoft mode
character and the anomaly detected at T2 = 280 K cannot be related to the effect of soft modes. |
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