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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| 格式: | Final Year Project |
| 語言: | English |
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2012
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| 在線閱讀: | http://hdl.handle.net/10356/49063 |
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