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Itamar Kimchi
Researcher at University of Colorado Boulder
Publications - 69
Citations - 4197
Itamar Kimchi is an academic researcher from University of Colorado Boulder. The author has contributed to research in topics: Quantum spin liquid & Mott insulator. The author has an hindex of 27, co-authored 64 publications receiving 3538 citations. Previous affiliations of Itamar Kimchi include University of California, Berkeley & National Institute of Standards and Technology.
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Quantum oscillations from surface Fermi arcs in Weyl and Dirac semimetals
TL;DR: It is found that the open Fermi arcs participate in unusual closed magnetic orbits by traversing the bulk of the sample to connect opposite surfaces, and result in quantum oscillations that contain observable signatures of the topological character of the bulk Weyl semimetal.
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Landau quantization and quasiparticle interference in the three-dimensional Dirac semimetal Cd3As2
Sangjun Jeon,Brian B. Zhou,Andras Gyenis,Benjamin E. Feldman,Itamar Kimchi,Andrew C. Potter,Quinn Gibson,Robert J. Cava,Ashvin Vishwanath,Ali Yazdani +9 more
TL;DR: Scanning tunnelling microscopy measurements at sub-kelvin temperatures and high magnetic fields on the II-V semiconductor Cd3As2.2 show that defects mostly influence the valence band, consistent with the observation of ultrahigh-mobility carriers in the conduction band.
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Physics of the Kitaev Model: Fractionalization, Dynamic Correlations, and Material Connections
TL;DR: The Kitaev honeycomb model and its generalizations to other tricoordinated lattices are chief counterexamples for quantum spin liquids as mentioned in this paper, and are also relevant for certain transition metal compounds including the polymorphs of (Na,Li)2IrO3 iridates and RuCl3.
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Transport evidence for Fermi-arc-mediated chirality transfer in the Dirac semimetal Cd3As2
Philip J. W. Moll,Nityan Nair,Toni Helm,Andrew C. Potter,Itamar Kimchi,Ashvin Vishwanath,James Analytis,James Analytis +7 more
TL;DR: This work presents Shubnikov–de Haas oscillations in focused-ion-beam-prepared microstructures of Cd3As2 that are consistent with the theoretically predicted ‘Weyl orbits’, a kind of cyclotron motion that weaves together Fermi-arc and chiral bulk states.
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Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate
Kimberly Modic,Tess Smidt,Itamar Kimchi,Nicholas Breznay,Alun Biffin,Sungkyun Choi,Roger Johnson,Radu Coldea,Pilanda Watkins-Curry,Gregory T. McCandless,Julia Y. Chan,Felipe Gándara,Zahirul Islam,Ashvin Vishwanath,Arkady Shekhter,Ross D. McDonald,James Analytis +16 more
TL;DR: A new iridate structure that has the same local connectivity as the layered honeycomb and exhibits striking evidence for highly spin-anisotropic exchange is reported, suggesting a new family of three-dimensional structures could exist, the 'harmonic honeycomb' iridates.