Properties of the two-dimensional spin-1/2 Heisenberg model on a honeycomb lattice with interlayer coupling
The magnetic properties of the two-dimensional S = 1/2 (quantum) antiferromagnetic Heisenberg model on a honeycomb lattice with and without interlayer coupling are studied by means of a continuous Euclidean time Quantum-Monte-Carlo algorithm. The internal energy, the magnetic susceptibility and th...
Збережено в:
| Видавець: | Інститут фізики конденсованих систем НАН України |
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| Дата: | 2009 |
| 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/123456789/120290 |
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| Цитувати: | Properties of the two-dimensional spin-1/2 Heisenberg model on a honeycomb lattice with interlayer coupling / U. Löw // Condensed Matter Physics. — 2009. — Т. 12, № 3. — С. 497-506. — Бібліогр.: 30 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The magnetic properties of the two-dimensional S = 1/2 (quantum) antiferromagnetic Heisenberg model on
a honeycomb lattice with and without interlayer coupling are studied by means of a continuous Euclidean
time Quantum-Monte-Carlo algorithm. The internal energy, the magnetic susceptibility and the staggered
magnetization are determined in the full temperature range. For the two-dimensional system the groundstate
energy/bond is found to be Ehc 0 = -0:36303(13), and the zero temperature staggered magnetization
mst = 0:2681(8). For coupled planes of honeycomb systems a phase transition from an ordered phase to a
disordered phase is found at T/J = 0:695(10). |
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