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  Observation of nodal line in non-symmorphic topological semimetal InBi

Ekahana, S. A., Wu, S.-C., Jiang, J., Okawa, K., Prabhakaran, D., Hwang, C.-C., et al. (2017). Observation of nodal line in non-symmorphic topological semimetal InBi. New Journal of Physics, 19: 065007, pp. 1-8. doi:10.1088/1367-2630/aa75a1.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-AF09-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-AF0B-C
Genre: Journal Article

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 Creators:
Ekahana, Sandy Adhitia1, Author
Wu, Shu-Chun2, Author              
Jiang, Juan1, Author
Okawa, Kenjiro1, Author
Prabhakaran, Dharmalingam1, Author
Hwang, Chan-Cuk1, Author
Mo, Sung-Kwan1, Author
Sasagawa, Takao1, Author
Felser, Claudia3, Author              
Yan, Binghai4, Author              
Liu, Zhongkai1, Author
Chen, Yulin1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
4Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              

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 Abstract: Topological nodal semimetal (TNS), characterized by its touching conduction and valence bands, is a newly discovered state of quantum matter which exhibits various exotic physical phenomena. Recently, a new type of TNS called topological nodal line semimetal (TNLS) is predicted where its conduction and valence band form a degenerate one-dimension line which is further protected by its crystal symmetry. In this work, we systematically investigated the bulk and surface electronic structure of the non-symmorphic, TNLS in InBi (which is also a type II Dirac semimetal) with strong spin-orbit coupling by using angle resolved photoemission spectroscopy. By tracking the crossing points of the bulk bands at the Brillouin zone boundary, we discovered the nodal-line feature along the kz direction, in agreement with the ab initio calculations and confirmed it to be a new compound in the TNLS family. Our discovery provides a new material platform for the study of these exotic topological quantum phases and paves the way for possible future applications.

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Language(s): eng - English
 Dates: 2017-07-032017-07-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000404638500001
DOI: 10.1088/1367-2630/aa75a1
 Degree: -

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Title: New Journal of Physics
  Abbreviation : New J. Phys.
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 19 Sequence Number: 065007 Start / End Page: 1 - 8 Identifier: ISSN: 1367-2630
CoNE: /journals/resource/954926913666