Imaging electronic states on topological semimetals using scanning tunneling microscopy [electronic resource].
- Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- Article numbers 105,003 : digital, PDF file
- Additional Creators:
- Princeton University
United States. Department of Energy. Office of Basic Energy Sciences
United States. Office of the United States Secretary of Energy
United States. Department of Energy. Office of Scientific and Technical Information
- Following the intense studies on topological insulators, significant efforts have recently been devoted to the search for gapless topological systems. These materials not only broaden the topological classification of matter but also provide a condensed matter realization of various relativistic particles and phenomena previously discussed mainly in high energy physics. Weyl semimetals host massless, chiral, low-energy excitations in the bulk electronic band structure, whereas a symmetry protected pair of Weyl fermions gives rise to massless Dirac fermions.Weemployed scanning tunneling microscopy/spectroscopy to explore the behavior of electronic states both on the surface and in the bulk of topological semimetal phases. By mapping the quasiparticle interference (QPI) and emerging Landau levels at high magnetic field in Dirac semimetals Cd<sub>3</sub>As<sub>2</sub> and Na<sub>3</sub>Bi, we observed extended Dirac-like bulk electronic bands. QPI imaged on Weyl semimetal TaAs demonstrated the predicted momentum dependent delocalization of Fermi arc surface states in the vicinity of the surface projected Weyl nodes.
- Published through SciTech Connect.
New Journal of Physics 18 10 ISSN 1367-2630 AM
András Gyenis; Hiroyuki Inoue; Sangjun Jeon; Brian B. Zhou; Benjamin E. Feldman; Zhijun Wang; Jian Li; Shan Jiang; Quinn D. Gibson; Satya K. Kushwaha; Jason W. Krizan; Ni Ni; Robert J. Cava; B. Andrei Bernevig; Ali Yazdani.
Univ. of California, Los Angeles, CA (United States)
- Funding Information:
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