Topological Properties of the Nodal Surface Crystal

LI Runze; CHEN Limei; HUANG Yulei; LI Zhi

doi:10.6054/j.jscnun.2019095

Journal of South China Normal University (Natural Science Edition) > 2019 > 51(6): 7-11. > DOI: 10.6054/j.jscnun.2019095

LI Runze, CHEN Limei, HUANG Yulei, LI Zhi. Topological Properties of the Nodal Surface Crystal[J]. Journal of South China Normal University (Natural Science Edition), 2019, 51(6): 7-11. DOI: 10.6054/j.jscnun.2019095

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Topological Properties of the Nodal Surface Crystal

School of Physics and Telecommunication Engineering, South China Normal Univesity, Guangzhou 510006, China

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Received Date: July 11, 2019
Available Online: March 21, 2021

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Abstract

A cold atomic lattice scheme of realizing the nodal surface crystal was proposed and its topological properties were investigated. By adjusting laser parameters, the system can reach three different phases, i.e., topological metallic phase, trivial metallic phase and band insulating phase. The relation among nodal surface, energy band, edge states and density of states in different phases were studied, and the results reveal that the topologically protected surface state can be found in the nodal surface crystal, i.e., the system shows the features of a topological metal.
- nodal surface crystal,
- topological metal,
- surface state

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