Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice
The mixed spin-1/2 and spin-3/2 Ising model on the extended Kagome lattice is solved by establishing a mapping correspondence with the eight-vertex model. When the parameter of uniaxial single-ion anisotropy tends to infinity, the model system becomes exactly solvable as the staggered eight-vertex...
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| Дата: | 2006 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2006
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/121312 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice / J. Strecka, L. Canova // Condensed Matter Physics. — 2006. — Т. 9, № 1(45). — С. 179–186. — Бібліогр.: 15 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1213122017-06-15T03:05:16Z Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice Strecka, J. Canova, L. The mixed spin-1/2 and spin-3/2 Ising model on the extended Kagome lattice is solved by establishing a mapping correspondence with the eight-vertex model. When the parameter of uniaxial single-ion anisotropy tends to infinity, the model system becomes exactly solvable as the staggered eight-vertex model satisfying the free-fermion condition. The critical points within this manifold can be characterized by critical exponents from the standard Ising universality class. The critical points within another subspace of interaction parameters, which corresponds to a coexistence surface between two ordered phases, can be approximated by corresponding results of the uniform eight-vertex model satisfying the zero-field condition. This coexistence surface is bounded by a line of bicritical points that have non-universal continuously varying critical indices 2006 Article Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice / J. Strecka, L. Canova // Condensed Matter Physics. — 2006. — Т. 9, № 1(45). — С. 179–186. — Бібліогр.: 15 назв. — англ. 1607-324X PACS: 75.10.Hk, 05.50.+q, 75.40.Cx DOI:10.5488/CMP.9.1.179 http://dspace.nbuv.gov.ua/handle/123456789/121312 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
The mixed spin-1/2 and spin-3/2 Ising model on the extended Kagome lattice is solved by establishing a mapping correspondence with the eight-vertex model. When the parameter of uniaxial single-ion anisotropy
tends to infinity, the model system becomes exactly solvable as the staggered eight-vertex model satisfying
the free-fermion condition. The critical points within this manifold can be characterized by critical exponents
from the standard Ising universality class. The critical points within another subspace of interaction parameters,
which corresponds to a coexistence surface between two ordered phases, can be approximated by
corresponding results of the uniform eight-vertex model satisfying the zero-field condition. This coexistence
surface is bounded by a line of bicritical points that have non-universal continuously varying critical indices |
| format |
Article |
| author |
Strecka, J. Canova, L. |
| spellingShingle |
Strecka, J. Canova, L. Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice Condensed Matter Physics |
| author_facet |
Strecka, J. Canova, L. |
| author_sort |
Strecka, J. |
| title |
Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice |
| title_short |
Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice |
| title_full |
Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice |
| title_fullStr |
Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice |
| title_full_unstemmed |
Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice |
| title_sort |
non-universal critical behaviour of a mixed-spin ising model on the extended kagome lattice |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2006 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/121312 |
| citation_txt |
Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice / J. Strecka, L. Canova // Condensed Matter Physics. — 2006. — Т. 9, № 1(45). — С. 179–186. — Бібліогр.: 15 назв. — англ. |
| series |
Condensed Matter Physics |
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2023-10-18T20:39:09Z |
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