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arXiv 1608.04495cond-mat.str-el
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交换各向异性作为阻挫自旋链中自旋条纹形成的机制

Exchange anisotropy as mechanism for spin-stripe formation in frustrated spin chains

M. Pregelj, O. Zaharko, M. Herak, M. Gomilsek, A. Zorko, L. C. Chapon, F. Bourdarot, H. Berger, D. Arčon

摘要:

我们研究了负阻锯齿形自旋1/2链化合物$β$ -TeVO $_4$中出现的矢量手征和自旋密度波相位之间的无公度磁序的特殊纳米调制的自旋条纹机制。磁转矩,中子衍射和球形中子偏振测量的组合,以确定所有三个有序相的复杂的磁结构。基于这些结果,我们发展了一个简单的唯象模型,揭示了交换各向异性作为自旋阻挫系统中自旋条纹形成的关键因素。

英文摘要:

We investigate the spin-stripe mechanism responsible for the peculiar nanometer modulation of the incommensurate magnetic order that emerges between the vector-chiral and the spin-density-wave phase in the frustrated zigzag spin-1/2 chain compound $β$-TeVO$_4$. A combination of magnetic-torque, neutron-diffraction and spherical-neutron-polarimetry measurements is employed to determine the complex magnetic structures of all three ordered phases. Based on these results, we develop a simple phenomenological model, which exposes the exchange anisotropy as the key ingredient for the spin-stripe formation in frustrated spin systems.

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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