Ekahana SA, Wu SC, Jiang J, Okawa K, Prabhakaran D, Hwang CC, Mo SK, Sasagawa T, Felser C, Yan B, Liu Z, Chen Y (2017)
Publication Type: Journal article
Publication year: 2017
Book Volume: 19
Article Number: 065007
Journal Issue: 6
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.
APA:
Ekahana, S.A., Wu, S.-C., Jiang, J., Okawa, K., Prabhakaran, D., Hwang, C.-C.,... Chen, Y. (2017). Observation of nodal line in non-symmorphic topological semimetal InBi. New Journal of Physics, 19(6). https://doi.org/10.1088/1367-2630/aa75a1
MLA:
Ekahana, Sandy Adhitia, et al. "Observation of nodal line in non-symmorphic topological semimetal InBi." New Journal of Physics 19.6 (2017).
BibTeX: Download