论文标题

2H-TA $ _x $ nb $ _ {1-x} $ SE $ _2 $ scanning Tunneling Spectroscopery证明的非弹性电子隧道

Inelastic electron tunneling in 2H-Ta$_x$Nb$_{1-x}$Se$_2$ evidenced by scanning tunneling spectroscopy

论文作者

Hou, Xing-Yuan, Zhang, Fan, Tu, Xin-Hai, Gu, Ya-Dong, Zhang, Meng-Di, Gong, Jing, Tu, Yu-Bing, Wang, Bao-Tian, Lv, Wen-Gang, Weng, Hong-Ming, Ren, Zhi-An, Chen, Gen-Fu, Zhu, Xiang-De, Hao, Ning, Shan, Lei

论文摘要

我们报告了在2H-TA $ _X $ nb $ _ {1-x} $ se $ _2 $($ x = 0 \ sim 0.1 $)的单晶上测量的隧道光谱的详细研究。很长一段时间以来,发现了不可思议的突出的差距样特征,并伴有一些“间隙”的精细结构。通过研究第二个衍生频谱及其温度和磁场依赖性,我们能够证明非弹性电子隧道是这些特征的起源,并获得了2H-TA $ _x $ _x $ _x $ _x $ _x $ _x $ _ nb $ _ {1-x} $ se $ se $ _2 $ _2 $ _2 $的潜在方式,从而提供了相关的Elia Shshshshberg-shshshberg-shshshberg-shsshshshbergs spectrain spectrain shernberg shshshbergnberg。二分法生成剂。

We report a detailed study of tunneling spectra measured on 2H-Ta$_x$Nb$_{1-x}$Se$_2$ ($x=0\sim 0.1$) single crystals using a low-temperature scanning tunneling microscope. The prominent gap-like feature unintelligible for a long time was found to be accompanied by some "in-gap" fine structures. By investigating the second-derivative spectra and their temperature and magnetic field dependencies, we were able to prove that inelastic electron tunneling is the origin of these features and obtain the Eliashberg function of 2H-Ta$_x$Nb$_{1-x}$Se$_2$ at atomic scale, providing a potential way to study the local Eliashberg function and phonon spectra of the related transition-metal dichalcogenides.

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