| 一维自旋-轨道模型中的畴状轨道液体态 |
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| 引用本文： | 张士勇. 一维自旋-轨道模型中的畴状轨道液体态[J]. 物理学报, 2003, 52(9): 2290-2292 |
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| 作者姓名： | 张士勇 |
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| 作者单位： | 长安大学基础部，西安 710064 |
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| 摘 要： | 研究了一个一维可解自旋-轨道模型.在大自旋极限下，自旋自由度可以近似用经典自旋来描 述.在没有外磁场情形，系统的基态是伊辛自旋反铁磁背景下的轨道液体态.其低能元激发是 类似于spinon的轨道量子.而在有外磁场情形，系统会出现磁通点阵相.同时，磁通将系统分 割成不连通的轨道液体.关键词：自旋轨道系统畴状轨道液体
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| 关 键 词： | 自旋轨道系统 畴状轨道液体 |
| 文章编号： | 1000-3290/2003/52(09)2290-03 |
| 收稿时间： | 2003-01-05 |
| 修稿时间： | 2003-01-05 |
The domain-state orbital liquids in a one-dimensional spin-orbital model |
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| Zhang Shi-Yong. The domain-state orbital liquids in a one-dimensional spin-orbital model[J]. Acta Physica Sinica, 2003, 52(9): 2290-2292 |
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| Authors: | Zhang Shi-Yong |
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| Abstract: | A one dimensional integrable spin orbital model is studied. In the large spin limit, the degrees of freedom of the spin part can be described by the classical Ising spins. Without the external magnetic field, the ground state of the system is a connected orbital liquid with the background of Ising antiferromagnetic order of spins. The elementary excitations are the usual spinon like orbital quanta. In an external magnetic field, flux phase exists in the system. The fluxes(two parallel ising spins)cut the system into disconnected orbital liquids(domains). |
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| Keywords: | spin|orbital system domain|state orbital liquid |
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