Pressure-temperature phase diagram of the generalized Hubbard model with correlated hopping at half-filling
In the present paper, the pressure-temperature phase diagram of a generalized Hubbard model with correlated hopping in a paramagnetic state at half-filling is determined by means of a generalized mean-field approximation in the Green function technique. The constructed phase diagram describes th...
Збережено в:
| Видавець: | Інститут фізики конденсованих систем НАН України |
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| Дата: | 2001 |
| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2001
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119754 |
| Теги: |
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| Цитувати: | Pressure-temperature phase diagram of the generalized Hubbard model with correlated hopping at half-filling / L. Didukh, V. Hankevych // Condensed Matter Physics. — 2001. — Т. 4, № 1(25). — С. 93-100. — Бібліогр.: 33 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | In the present paper, the pressure-temperature phase diagram of a generalized
Hubbard model with correlated hopping in a paramagnetic state
at half-filling is determined by means of a generalized mean-field approximation
in the Green function technique. The constructed phase diagram
describes the metal-to-insulator transition with increasing temperature, and
the insulator-to-metal transition under the action of external pressure. The
phase diagram can explain the paramagnetic region of the phase diagrams
of some transition metal compounds |
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