Optical tuning and characterization of the anisotropic band structure of topological nodal ring systems

被引:1
作者
Fang, Jun [1 ]
Zhang, Chao [2 ]
Ma, Zhongshui [1 ,3 ]
机构
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[2] Univ Wollongong, Sch Phys, Wollongong, NSW 2522, Australia
[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
基金
澳大利亚研究理事会;
关键词
CONDUCTANCE; SEMIMETALS;
D O I
10.1063/5.0143436
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate that a topological nodal ring system driven by an off-resonant laser can be tuned between the semimetal phase and the insulator phases, including Weyl semimetal, semi-Dirac semimetal, and normal insulator phases. The controlling parameters are the disorder induced energy shift and the driving laser frequency. We further show that there exists a close correlation between the low energy spectrum and the low frequency conductivity. From the frequency dependence of conductivity components, one can deduce the anisotropic energy dispersion along different directions. This result offers a convenient optical method to tune and characterize electronic properties of nodal ring systems.
引用
收藏
页数:6
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共 47 条
  • [1] Weyl and Dirac semimetals in three-dimensional solids
    Armitage, N. P.
    Mele, E. J.
    Vishwanath, Ashvin
    [J]. REVIEWS OF MODERN PHYSICS, 2018, 90 (01)
  • [2] Phenomenology of a semi-Dirac semi-Weyl semimetal
    Banerjee, S.
    Pickett, W. E.
    [J]. PHYSICAL REVIEW B, 2012, 86 (07)
  • [3] Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
    Bradlyn, Barry
    Cano, Jennifer
    Wang, Zhijun
    Vergniory, M. G.
    Felser, C.
    Cava, R. J.
    Bernevig, B. Andrei
    [J]. SCIENCE, 2016, 353 (6299)
  • [4] Observing light-induced Floquet band gaps in the longitudinal conductivity of graphene
    Broers, Lukas
    Mathey, Ludwig
    [J]. COMMUNICATIONS PHYSICS, 2021, 4 (01)
  • [5] Emergent Weyl nodes and Fermi arcs in a Floquet Weyl semimetal
    Bucciantini, Leda
    Roy, Sthitadhi
    Kitamura, Sota
    Oka, Takashi
    [J]. PHYSICAL REVIEW B, 2017, 96 (04)
  • [6] Topological semimetals
    Burkov, A. A.
    [J]. NATURE MATERIALS, 2016, 15 (11) : 1145 - 1148
  • [7] Topological nodal semimetals
    Burkov, A. A.
    Hook, M. D.
    Balents, Leon
    [J]. PHYSICAL REVIEW B, 2011, 84 (23):
  • [8] Floquet topological insulators
    Cayssol, Jerome
    Dora, Balazs
    Simon, Ferenc
    Moessner, Roderich
    [J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2013, 7 (1-2): : 101 - 108
  • [9] Phonon-induced Floquet topological phases protected by space-time symmetries
    Chaudhary, Swati
    Haim, Arbel
    Peng, Yang
    Refael, Gil
    [J]. PHYSICAL REVIEW RESEARCH, 2020, 2 (04):
  • [10] Floquet band structure of a semi-Dirac system
    Chen, Qi
    Du, Liang
    Fiete, Gregory A.
    [J]. PHYSICAL REVIEW B, 2018, 97 (03)