Shot noise in a strange metal-Reference-Cited by-同舟云学术

Shot noise in a strange metal

Published:2023-11-24 Issue:6673 Volume:382 Page:907-911
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Chen Liyang¹^ORCID,Lowder Dale T.²^ORCID,Bakali Emine³^ORCID,Andrews Aaron Maxwell⁴^ORCID,Schrenk Werner⁵^ORCID,Waas Monika³,Svagera Robert³,Eguchi Gaku³^ORCID,Prochaska Lukas³^ORCID,Wang Yiming²^ORCID,Setty Chandan²,Sur Shouvik²,Si Qimiao²^ORCID,Paschen Silke³^ORCID,Natelson Douglas²⁶⁷^ORCID

Affiliation:

1. Applied Physics Graduate Program, Rice University, TX 77005, USA.

2. Department of Physics and Astronomy, Rice Center for Quantum Materials, Rice University, Houston, TX 77005, USA.

3. Institute of Solid State Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria.

4. Institute of Solid State Electronics, TU Wien, Gußhausstraße 25-25a, Gebäude CH, 1040 Vienna, Austria.

5. Center for Micro and Nanostructures, TU Wien, Gußhausstraße 25-25a, Gebäude CH, 1040 Vienna, Austria.

6. Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA.

7. Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA.

Abstract

S trange-metal behavior has been observed in materials ranging from high-temperature superconductors to heavy fermion metals. In conventional metals, current is carried by quasiparticles; although it has been suggested that quasiparticles are absent in strange metals, direct experimental evidence is lacking. We measured shot noise to probe the granularity of the current-carrying excitations in nanowires of the heavy fermion strange metal YbRh 2 Si 2 . When compared with conventional metals, shot noise in these nanowires is strongly suppressed. This suppression cannot be attributed to either electron-phonon or electron-electron interactions in a Fermi liquid, which suggests that the current is not carried by well-defined quasiparticles in the strange-metal regime that we probed. Our work sets the stage for similar studies of other strange metals.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Link

https://www.science.org/doi/pdf/10.1126/science.abq6100

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1. Shot noise in a strange metal;Science;2023-11-24