Journal
MATERIALS TODAY PHYSICS
Volume 18, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mtphys.2021.100348
Keywords
Topological material; Density functional theory; Band structure; First principles calculation
Funding
- National Natural Science Foundation of China [61904153, 51801163]
- Natural Science Foundation of Chongqing [cstc2018jcyjA0765, cstc2019jcyj-msxmX0251]
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This study presents a realistic material PrSbPt with hexagonal crystal structure, exhibiting different topological dimensions, including the rare Type-II nodal ring and critical type Dirac points.
The focus of topological materials has been recently expanded to metals and semimetals and, according to the dimensionaliy of their topological states, they can be divided into three types, i.e., zero-dimension nodal point, one-dimension nodal line and two-dimension nodal surface. So far, most of the studies have found singe topological element of different types and the coexistence of double states in a sole material is very scarce, not to mention the three types together. In this study, we present a realistic material PrSbPt with hexagonal crystal structure, which remarkably exhibits different topolgoial dimensitilities simutaneouly and, especially, the very rare Type-II nodal ring and critical type Dirac points have been also included. This rich topological diversity in a single material can be very interesting and promising for the future study of different fermionic states and their possible correlation effect. (C) 2021 Elsevier Ltd. All rights reserved.
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