Atomic-Scale Visualization of Quasiparticle Interference on a Type-II Weyl Semimetal Surface
Journal Article
·
· Physical Review Letters
- Princeton University, NJ (United States)
- National University of Singapore (Singapore)
- Peking University, Beijing (China)
- National Tsing Hua University, Hsinchu (Taiwan)
- Nanjing University (China)
- National Tsing Hua University, Hsinchu (Taiwan); Institute of Physics, Academia Sinica, Taipei (Taiwan)
- Northeastern University, Boston, MA (United States)
- Peking University, Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
Here we combine quasiparticle interference simulation (theory) and atomic resolution scanning tunneling spectromicroscopy (experiment) to visualize the interference patterns on a type-II Weyl semimetal MoxW1-xTe2 for the first time. Our simulation based on first-principles band topology theoretically reveals the surface electron scattering behavior. We identify the topological Fermi arc states and reveal the scattering properties of the surface states in Mo0.66W0.34Te2. In addition, our result reveals an experimental signature of the topology via the interconnectivity of bulk and surface states, which is essential for understanding the unusual nature of this material.
- Research Organization:
- Northeastern Univ., Boston, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Gordon and Betty Moore Foundations; National Science Foundation (NSF); National Natural Science Foundation of China (NSFC); National Research Foundation; National Basic Research Program of China; Ministry of Science and Technology, Academia Sinica; National Tsing Hus University; National Key Projects for Basic Research of China
- Grant/Contract Number:
- FG02-07ER46352; AC02-05CH11231; GBMF4547; NSFDMR-1006492; 11674226; NRFNRFF2013-03; 2013CB921901; 2014CB239302; DMR-1420541; 2013CB922103; 91421109; 11134005; 11522432
- OSTI ID:
- 1536463
- Alternate ID(s):
- OSTI ID: 1337446
- Journal Information:
- Physical Review Letters, Vol. 117, Issue 26; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 52 works
Citation information provided by
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Web of Science
Author Correction: Signatures of the topological s+− superconducting order parameter in the type-II Weyl semimetal T
d
-MoTe2
|
journal | January 2018 |
Quasiparticle interference and nonsymmorphic effect on a floating band surface state of ZrSiSe
|
journal | October 2018 |
Quasiparticle Interference Evidence of the Topological Fermi Arc States in Chiral Fermionic Semimetal CoSi | text | January 2020 |
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