对“强磁场下铋表面态的特征“一文的评论
Comment on "Signatures of Surface States in Bismuth at High Magnetic Fields"
摘要：
能斯特效应是在存在磁场的情况下由于纵向热梯度而产生的横向电场。它的幅度最近研究了33 T的铋单晶与沿三角轴取向的磁场。除了能斯特响应的量子振荡之外，当磁场超过量子极限时，还检测到具有几个附加峰的丰富结构，该量子极限在该配置中为10 T的量级。这些高场能斯特异常的起源是一个正在进行的研究主题。最近，Seradjeh，Wu和Phillips提出表面状态可以引起这些异常。这一建议经不起批判性的检验。
英文摘要：
Nernst effect is the transverse electric field due to a longitudinal thermal gradient in presence of magnetic field. Its magnitude was recently studied up to 33 T in a bismuth single crystal with a magnetic field oriented along the trigonal axis . In addition to quantum oscillations of the Nernst response, a rich structure with several additional peaks was also detected when the magnetic field exceeded the quantum limit, which is of the order of 10 T in this configuration. The origin of these high-field Nernst anomalies is a subject of ongoing research. Very recently, Seradjeh, Wu, and Phillips have suggested that a surface state can give rise to these anomalies. This proposal does not resist a critical examination.
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