Phase diagram of the frustrated spin ladder with the next nearest intrachain couplings |
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| Authors: | Guang-Hua Liu Xiao-Yan Deng Rui Wen |
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| Affiliation: | 1. Department of Physics, Tianjin Polytechnic University, Tianjin 300387, China;2. Graduate Department, Tianjin Polytechnic University, Tianjin 300387, China;3. School of Physics, Peking University, Beijing 100871, China |
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| Abstract: | By the density matrix renormalization group method, the phase diagram of the frustrated spin-1/2 ladder with the next nearest intrachain and ferromagnetic interchain couplings is obtained. According to our results, the two-rung entanglement is shown to be more sensitive than order parameters for determining phase boundary in such a frustrated spin ladder model. Furthermore, the additional next nearest intrachain coupling is found to enhance the intermediate columnar dimerized phase evidently. |
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| Keywords: | Phenomena and properties Exchange and superexchange Phase transitions |
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