Quantum phase transitions and thermodynamics of quantum antiferromagnets with competing interactions
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Quantum phase transitions and thermodynamics of quantum antiferromagnets with competing interactions
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| Creator |
Trippe, Ch.
Klumper, A. |
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| Description |
We study the isotropic Heisenberg chain with nearest and next-nearest neighbor interactions. The ground state phase diagram is constructed in dependence on the additional interactions and an external magnetic field. The thermodynamics is studied by use of finite sets of nonlinear integral equations resulting from integrability. The equations are solved numerically and analytically in suitable limiting cases. We find second and first order transition lines. The exponents of the low-temperature asymptotics at the phase transitions are determined.
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| Date |
2010-04-08T12:09:19Z
2010-04-08T12:09:19Z 2007 |
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| Type |
Article
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| Identifier |
Quantum phase transitions and thermodynamics of quantum antiferromagnets with competing interactions / Ch. Trippe, A. Klumper // Физика низких температур. — 2007. — Т. 33, № 11. — С. 1213-1221. — Бібліогр.: 14 назв. — англ.
0132-6414 http://dspace.nbuv.gov.ua/handle/123456789/7712 |
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| Language |
en
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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