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I05-ARPES	Observation of nodal line in non-symmorphic topological semimetal InBi Sandy Adhitia Ekahana , Shu-Chun Wu , Juan Jiang , Kenjiro Okawa , Dharmalingam Prabhakaran , Chan-Cuk Hwang , Sung-Kwan Mo , Takao Sasagawa , Claudia Felser , Binghai Yan , Zhongkai Liu , Yulin Chen New Journal Of Physics DOI: 10.1088/1367-2630/aa75a1 Open Access Show Abstract ▼ Abstract: Topological Nodal Semimetal (TNS), characterised 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 1D 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 with strong spin-orbit coupling by using Angle Resolved Photoemission Spectroscopy (ARPES). By tracking the crossing points of the bulk bands at the Brillouin zone boundary, we discovered the nodal-line feature along the XRX line, in agreement with the ab-initio calculations and confirmed it to be a new compound in the TNLS family. Our discovery provides new material platform for the study of these exotic topological quantum phases and paves the way for possible future applications.	Jun 2017

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I05-ARPES

Observation of nodal line in non-symmorphic topological semimetal InBi