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arXiv 1207.2245cond-mat.str-elcond-mat.supr-con
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铜氧化物超导体中Zhang-Rice单线态的拓扑自旋织构

Topological Spin Texture Created by Zhang--Rice Singlets in Cuprate Superconductors

Takao Morinari

摘要:

在高温超导铜氧化物中,强电子关联的重要作用之一是形成Zhang-Rice单线态。通过充分考虑Zhang-Rice单线态形成的量子相关效应,我们发现在单空穴掺杂的CuO 2平面中,围绕Zhang-Rice单线态形成了拓扑自旋织构skyrmion. Skyrmion图像提供了反铁磁相关性和掺杂浓度x之间的自然联系。

英文摘要:

One of the most important effects of strong electron correlation in high-Tc cuprates is the formation of Zhang-Rice singlets. By fully accounting for the quantum correlation effect of Zhang-Rice singlet formation, we show that a topological spin texture, skyrmion, is created around a Zhang-Rice singlet in the single-hole-doped CuO2 plane. The skyrmion picture provides a natural connection between the antiferromagnetic correlation and the doping concentration x.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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