Scanning tunneling microscopy and spectroscopy of NiTe2

被引：1

作者：

Blue, Brandon T. ^{[1
,2
]}

Lough, Stephanie D. ^{[1
,2
]}

Le, Duy ^{[1
,3
]}

Thompson, Jesse E. ^{[1
,2
]}

Rahman, Talat S. ^{[1
,2
,3
,4
]}

Sankar, R. ^{[4
]}

Ishigami, Masahiro ^{[1
,2
]}

机构：

[1] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA

[2] Univ Cent Florida, Nanosci Technol Ctr, Orlando, FL 32816 USA

[3] Univ Cent Florida, Renewable Energy & Chem Transformat Cluster, Orlando, FL 32816 USA

[4] Acad Sinica, Inst Phys, Taipei, Taiwan

来源：

SURFACE SCIENCE | 2022年 / 722卷

关键词：

Nickel ditelluride; STM; STS; Surface states; Spintronics; ELECTRON; SURFACE;

D O I：

10.1016/j.susc.2022.122099

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nickel ditelluride is an unusual member of the transition metal dichalcogenide family which has garnered interest due to potential valley spin-polarized surface states near the Fermi level and the presence of Dirac nodes in its electronic band structure. In this work, exfoliation of bulk nickel ditelluride is performed under ultra-high vacuum in order to generate a clean surface for scanning tunneling microscopy and spectroscopy at 4.8 K. Multiple features in the observed electronic density of states are observed in the vicinity of the Fermi level and compared to calculated band structures to elucidate their origins. Our results are consistent with the presence of the spin-polarized surface states, yet indicate trivial states, which are close to the Fermi level, can interfere with their potential utility in spintronic applications.

引用

页数：4

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