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arXiv 1610.03073cond-mat.str-elcond-mat.mtrl-sci
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声子动力学中手征反常的特征

Signatures of the chiral anomaly in phonon dynamics

Pierre Rinkel, Pedro L. S. Lopes, Ion Garate

摘要:

手征反常现象是在高能物理中发现的,近年来由于外尔半金属(WSM)的出现而进入了材料科学。迄今为止,对WSM中手征反常的研究主要集中在电子现象上。在这里,我们表明,手征异常可以有很大的影响,在$A_1$声子的对映WSM。在这些材料中,手征异常在有效声子电荷中产生不寻常的磁场诱导共振,这反过来又导致声子色散、光学反射率和拉曼散射的异常。

英文摘要:

Discovered in high-energy physics, the chiral anomaly has recently made way to materials science by virtue of Weyl semimetals (WSM). Thus far, the main efforts to probe the chiral anomaly in WSM have concentrated on electronic phenomena. Here, we show that the chiral anomaly can have a large impact in the $A_1$ phonons of enantiomorphic WSM. In these materials, the chiral anomaly produces an unusual magnetic-field-induced resonance in the effective phonon charge, which in turn leads to anomalies in the phonon dispersion, optical reflectivity, and the Raman scattering.

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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