Consequences of lattice imperfections and interchain couplings for the critical properties of spin-$1/2$ chain compounds
To allow for a comparison of theoretical predictions for spin chains with experimental data, it is often important to take impurity effects as well as interchain couplings into account. Here we present the field theory for finite spin chains at finite temperature and calculate experimentally measu...
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/123456789/120021 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Consequences of lattice imperfections and interchain couplings for the critical properties of spin-$1/2$ chain compounds / J. Sirker // Condensed Matter Physics. — 2009. — Т. 12, № 3. — С. 449-462. — Бібліогр.: 40 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | To allow for a comparison of theoretical predictions for spin chains with experimental data, it is often important
to take impurity effects as well as interchain couplings into account. Here we present the field theory for finite
spin chains at finite temperature and calculate experimentally measurable quantities like susceptibilities and
nuclear magnetic resonance spectra. For the interchain couplings we concentrate on geometries relevant for
cuprate spin chains like Sr₂CuO₃ and SrCuO₂. The field theoretical results are compared to experimental as
well as numerical data obtained by the density matrix renormalization group. |
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