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Magneto-Thermoelectric Transport in Graphene Quantum Dot with Strong Correlations.
Anderson, Laurel E; Laitinen, Antti; Zimmerman, Andrew; Werkmeister, Thomas; Shackleton, Henry; Kruchkov, Alexander; Taniguchi, Takashi; Watanabe, Kenji; Sachdev, Subir; Kim, Philip.
Affiliation
  • Anderson LE; Department of Physics, <a href="https://ror.org/03vek6s52">Harvard University</a>, Cambridge, Massachusetts 02138, USA.
  • Laitinen A; Department of Physics, <a href="https://ror.org/03vek6s52">Harvard University</a>, Cambridge, Massachusetts 02138, USA.
  • Zimmerman A; Department of Physics, <a href="https://ror.org/03vek6s52">Harvard University</a>, Cambridge, Massachusetts 02138, USA.
  • Werkmeister T; Department of Applied Physics, <a href="https://ror.org/03vek6s52">Harvard University</a>, Cambridge, Massachusetts 02138, USA.
  • Shackleton H; Department of Physics, <a href="https://ror.org/03vek6s52">Harvard University</a>, Cambridge, Massachusetts 02138, USA.
  • Kruchkov A; Department of Physics, <a href="https://ror.org/03vek6s52">Harvard University</a>, Cambridge, Massachusetts 02138, USA.
  • Taniguchi T; Department of Physics, <a href="https://ror.org/00hx57361">Princeton University</a>, Princeton, New Jersey 08544, USA.
  • Watanabe K; Institute of Physics, <a href="https://ror.org/02s376052">École Polytechnique Fédérale de Lausanne</a>, Lausanne, CH 1015, Switzerland and Branco Weiss Society in Science, <a href="https://ror.org/05a28rw58">ETH Zurich</a>, Zurich, CH 8092, Switzerland.
  • Sachdev S; Research Center for Materials Nanoarchitectonics, <a href="https://ror.org/026v1ze26">National Institute for Materials Science</a>, 1-1 Namiki, Tsukuba 305-0044, Japan.
  • Kim P; Research Center for Electronic and Optical Materials, <a href="https://ror.org/026v1ze26">National Institute for Materials Science</a>, 1-1 Namiki, Tsukuba 305-0044, Japan.
Phys Rev Lett ; 132(24): 246502, 2024 Jun 14.
Article in En | MEDLINE | ID: mdl-38949367
ABSTRACT
Disorder at etched edges of graphene quantum dots (GQD) enables random all-to-all interactions between localized charges in partially filled Landau levels, providing a potential platform to realize the Sachdev-Ye-Kitaev (SYK) model. We use quantum Hall edge states in the graphene electrodes to measure electrical conductance and thermoelectric power across the GQD. In specific temperature ranges, we observe a suppression of electric conductance fluctuations and slowly decreasing thermoelectric power across the GQD with increasing temperature, consistent with recent theory for the SYK regime.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2024 Document type: Article Affiliation country: Estados Unidos Country of publication: Estados Unidos
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2024 Document type: Article Affiliation country: Estados Unidos Country of publication: Estados Unidos