Singular charge fluctuations at a magnetic quantum critical point-Reference-Cited by-同舟云学术

Singular charge fluctuations at a magnetic quantum critical point

Published:2020-01-17 Issue:6475 Volume:367 Page:285-288
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Prochaska L.¹^ORCID,Li X.²^ORCID,MacFarland D. C.¹³^ORCID,Andrews A. M.³^ORCID,Bonta M.⁴,Bianco E. F.⁵,Yazdi S.⁶^ORCID,Schrenk W.⁷^ORCID,Detz H.⁷^ORCID,Limbeck A.⁴^ORCID,Si Q.⁸^ORCID,Ringe E.⁶^ORCID,Strasser G.³⁷^ORCID,Kono J.²⁶⁸^ORCID,Paschen S.¹⁸^ORCID

Affiliation:

1. Institute of Solid State Physics, Technischen Universität (TU) Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria.

2. Department of Electrical and Computer Engineering, 6100 Main Street, Rice University, Houston, TX 77005, USA.

3. Institute of Solid State Electronics, TU Wien, Nanocenter Campus Gußhaus, Gußhausstraße 25-25a, Gebäude CH, 1040 Vienna, Austria.

4. Institute of Chemical Technologies and Analytics, TU Wien, Getreidemarkt 9, 1060 Vienna, Austria.

5. Department of Chemistry, 6100 Main Street, Rice University, Houston, TX 77005, USA.

6. Department of Materials Science and Nanoengineering, 6100 Main Street, Rice University, Houston, TX 77005, USA.

7. Center for Micro- and Nanostructures, TU Wien, Nanocenter Campus Gußhaus, Gußhausstraße 25-25a, Gebäude CH, 1040 Vienna, Austria.

8. Department of Physics and Astronomy, Center for Quantum Materials, 6100 Main Street, Rice University, Houston, TX 77005, USA.

Abstract

Spin-charge entanglement Many physical properties follow characteristic scaling laws near quantum critical points, which are associated with phase transitions at absolute zero temperature. The material YbRh 2 Si 2 has an antiferromagnetic quantum critical point, where spin-related properties are expected to follow such a scaling. Unexpectedly, Prochaska et al. found that charge fluctuations follow a critical scaling as well. The researchers fabricated high-quality thin films of YbRh 2 Si 2 and used transmission spectroscopy to measure the optical conductivity of the film and infer the scaling. Their findings point to a highly entangled state of charge and spin, which may also be responsible for the strangemetal phase in this material. Science , this issue p. 285

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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