Phase separation of t–J–V model on a triangular lattice: Possible application to heavily doped NaxCoO2
Phase separation of t–J–V model on a triangular lattice: Possible application to heavily doped NaxCoO2
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DOI：
10.1016/j.physleta.2010.09.051
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发表时间：
2010-10
影响因子：
2.6
通讯作者：
Weihua Wang;Yahui Cheng;F. Lu;Xiaoguang Luo;Hsin Lin;L. Zou
中科院分区：
文献类型：
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作者：
Weihua Wang;Yahui Cheng;F. Lu;Xiaoguang Luo;Hsin Lin;L. Zou
从理论上研究了二维三角晶格上单轨道t-J-V模型的基态性质。我们发现不同的相互作用参数有利于不同电荷和自旋有序的GS。此外，相分离的GS是稳定的重掺杂Na{sub x}CoO{sub 2}的相互作用参数制度。
We theoretically investigated the ground state (GS) properties of the single-orbital t-J-V model on a two-dimensional triangular lattice. We found that different interaction parameters are in favor of different charge and spin ordered GS. Moreover, a phase separated GS is stable in the interaction parameter regime of heavily doped Na{sub x}CoO{sub 2}.