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arXiv 0904.3018cond-mat.str-el
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Shastry-Sutherland反铁磁体在Ising极限附近的磁化强度

Magnetization of the Shastry-Sutherland antiferromagnet near the Ising limit

Fangzhou Liu, Subir Sachdev

摘要:

最近的实验TmB 4(arXiv:0712.1537)的动机,我们研究的相图中的Shastry-Sutherland反铁磁体在施加的磁场的限制强伊辛各向异性。在经典伊辛极限下,我们证明了只有在饱和磁化强度的1/3处才有分数磁化平台。我们研究了横向量子自旋涨落的微扰影响,并提出证据表明,它们可以稳定一个狭窄的1/2磁化平台。

英文摘要:

Motivated by recent experiments on TmB4 (arXiv:0712.1537), we examine the phase diagram of the Shastry-Sutherland antiferromagnet in an applied magnetic field in the limit of strong Ising anisotropy. In classical Ising limit, we demonstrate that the only fractional magnetization plateau is at 1/3 of the saturated magnetization. We study the perturbative influence of transverse quantum spin fluctuations, and present evidence that they can stabilize a narrow 1/2 magnetization plateau.

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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