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Showing 1–9 of 9 results
Advanced filters: Author: Matthew Brahlek Clear advanced filters

  • A correlated material SrVO3 has been considered to be a Fermi liquid, however previous studies have been limited to disordered samples. Here the authors study transport in ultraclean films of SrVO3, finding deviations from the Fermi liquid picture.

    • Matthew Brahlek
    • Joseph D. Roth
    • Roman Engel-Herbert
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • 2D Weyl semimetals are spin-polarized analogues of graphene that promise access to various topological properties of matter. Here, the authors evidence spin-polarized Weyl cones, Weyl nodes, and Fermi strings in monolayer bismuthene.

    • Qiangsheng Lu
    • P. V. Sreenivasa Reddy
    • Guang Bian
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • 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

  • The combination of magnetic and non-magnetic layers in (MnBi2Te4)(Bi2Te3) is predicted to produce topologically protected states on the surface. Experiments now show that the nature of the topmost layer controls the location of these states.

    • Matthew Brahlek
    • Robert G. Moore
    News & Views
    Nature Physics
    Volume: 19, P: 924-925

  • A scalable method for the growth of perovskite oxides thin films on silicon is desirable for integration of buffer layers in devices. Here the authors demonstrate the stoichiometric growth of thin SrTiO3 layers on silicon at high growth rates by hybrid molecular beam epitaxy.

    • Jason Lapano
    • Matthew Brahlek
    • Roman Engel-Herbert
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • Electronic many-body effects are used to control the electron effective mass, and thus the plasma energy and electrical conductivity, of thin films of the correlated metals SrVO3 and CaVO3, making them good candidates as transparent conductors.

    • Lei Zhang
    • Yuanjun Zhou
    • Roman Engel-Herbert
    Research
    Nature Materials
    Volume: 15, P: 204-210

  • PdCoO2 belongs to a class of materials where both weakly and strongly correlated electrons co-exist side-by-side in different layers of the crystal structure. Here, the authors investigate PdCoO2 using standing wave photoemission spectroscopy and many-body calculations reporting layer-specific details about the electronic structure.

    • Qiyang Lu
    • Henrique Martins
    • Slavomir Nemsak
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-8