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Showing 1–3 of 3 results
Advanced filters: Author: Nikesh Koirala Clear advanced filters

  • Charge-to-spin conversion is a key theme of spintronics and its realization in topological materials is highly desired. Here, Liu et al. report spatial imaging of current-induced spin accumulation at the edges of Bi2Se3 and BiSbTeSe2 topological insulators.

    • Yang Liu
    • Jean Besbas
    • Hyunsoo Yang
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-6

  • The terahertz response of topological insulator surface states, in which relativistic electrons are protected from backscattering, possesses potential optic and plasmonic applications. Here, the authors demonstrate a nonlinear absorption response of Bi2Se3to terahertz electric fields.

    • Flavio Giorgianni
    • Enrica Chiadroni
    • Stefano Lupi
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-6

  • For optical control of plasmons metals require a large amount of power in the control pulse, yielding a small modulation depth. Here, Sim et al. fabricate arrays of Bi2Se3 and report a modulation depth of 2,400% at 1.5 THz with an optical fluence of 45 μJ/cm2, demonstrating a novel route for controlling plasmons.

    • Sangwan Sim
    • Houk Jang
    • Hyunyong Choi
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7