Now showing items 1-5 of 5

    • Ab initiotight-binding Hamiltonian for transition metal dichalcogenides 

      Fang, Shiang; Kuate Defo, Rodrick; Shirodkar, Sharmila N.; Lieu, Simon; Tritsaris, Georgios; Kaxiras, Efthimios (American Physical Society (APS), 2015)
      We present an accurate ab initio tight-binding Hamiltonian for the transition metal dichalcogenides, MoS2, MoSe2, WS2, WSe2, with a minimal basis (the d orbitals for the metal atoms and p orbitals for the chalcogen atoms) ...
    • Bounds on nanoscale nematicity in single-layerFeSe/SrTiO3 

      Huang, Dennis; Webb, Tatiana A.; Fang, Shiang; Song, Can-Li; Chang, Cui-Zu; Moodera, Jagadeesh S.; Kaxiras, Efthimios; Hoffman, Jennifer Eve (American Physical Society (APS), 2016)
      We use scanning tunneling microscopy (STM) and quasiparticle interference (QPI) imaging to investigate the low-energy orbital texture of single-layer FeSe/SrTiO3. We develop a T -matrix model of multiorbital QPI to disentangle ...
    • Magnetic resonance spectroscopy of an atomically thin material using a single-spin qubit 

      Lovchinsky, Igor; Lukin, Mikhail D.; Sanchez-Yamagishi, Javier; Urbach, Elana Kahn; Choi, Soonwon; Fang, Shiang; Andersen, Trond Ikdahl; Watanabe, Kenji; Taniguchi, Takashi; Bylinskii, Alexei; Kaxiras, Efthimios; Kim, Philip; Park, Hongkun (American Association for the Advancement of Science (AAAS), 2017)
      Two-dimensional (2D) materials offer a promising platform for exploring condensed matter phenomena and developing technological applications. However, the reduction of material dimensions to the atomic scale poses a challenge ...
    • Revealing the Empty-State Electronic Structure of Single-Unit-Cell FeSe/SrTiO3 

      Huang, Dennis; Song, Can-Li; Webb, Tatiana A.; Fang, Shiang; Chang, Cui-Zu; Moodera, Jagadeesh S.; Kaxiras, Efthimios; Hoffman, Jennifer Eve (American Physical Society (APS), 2015)
      We use scanning tunneling spectroscopy to investigate the filled and empty electronic states of superconducting single-unit-cell FeSe deposited on SrTiO3(001). We map the momentum-space band structure by combining quasiparticle ...
    • Theory of Graphene Raman Scattering 

      Heller, Eric J.; Yang, Yuan; Kocia, Lucas; Chen, Wei; Fang, Shiang; Borunda, Mario; Kaxiras, Efthimios (American Chemical Society (ACS), 2016)
      Raman scattering plays a key role in unraveling the quantum dynamics of graphene, perhaps the most promising material of recent times. It is crucial to correctly interpret the meaning of the spectra. It is therefore very ...