Neel to spin-Peierls transition in the ground and excited state of a quasi-1D Heisenberg model coupled to bond phonons.
The spin-Peierls transtion in the ground state (quantum phase transition) and excited state(thermal phase transition) of a quasi-1D Heisenberg model is investigated using the stochastic series expansion quantum monte carlo method. The transition from a gapless Neel state to a spin-gapped Peierls sta...
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Формат: | Final Year Project (FYP) |
Хэл сонгох: | English |
Хэвлэсэн: |
2012
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Нөхцлүүд: | |
Онлайн хандалт: | http://hdl.handle.net/10356/49063 |