Spin models of quasi-1D quantum ferrimagnets with competing interactions
We present a brief survey of the recent theoretical work related to generic Heisenberg spin models describing quasi-one-dimensional quantum ferrimagnets. The emphasis is on quantum chains and ladders with strong competing interactions, such as the frustrated J₁ - J₂ chain with alternating (1, 1/2)...
Збережено в:
| Дата: | 2009 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2009
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120016 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Spin models of quasi-1D quantum ferrimagnets with competing interactions / N.B. Ivanov // Condensed Matter Physics. — 2009. — Т. 12, № 3. — С. 435-447. — Бібліогр.: 88 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | We present a brief survey of the recent theoretical work related to generic Heisenberg spin models describing
quasi-one-dimensional quantum ferrimagnets. The emphasis is on quantum chains and ladders with strong
competing interactions, such as the frustrated J₁ - J₂ chain with alternating (1, 1/2) spins, the spin-1/2
diamond chain with four-spin cyclic couplings, and some generic types of mixed-spin ladders with geometric
frustration. As a rule, the discussed models exhibit rich quantum phase diagrams and provide some interesting
examples of one-dimensional magnetic-paramagnetic quantum phase transitions. A number of open problems
in the reviewed research area are discussed. |
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