Singular charge fluctuations at a magnetic quantum critical point
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU137448" target="_blank" >RIV/00216305:26620/20:PU137448 - isvavai.cz</a>
Result on the web
<a href="https://science.sciencemag.org/content/367/6475/285.abstract" target="_blank" >https://science.sciencemag.org/content/367/6475/285.abstract</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/science.aag1595" target="_blank" >10.1126/science.aag1595</a>
Alternative languages
Result language
angličtina
Original language name
Singular charge fluctuations at a magnetic quantum critical point
Original language description
Strange metal behavior is ubiquitous in correlated materials, ranging from cuprate superconductors to bilayer graphene, and may arise from physics beyond the quantum fluctuations of a Landau order parameter. In quantum-critical heavy-fermion antiferromagnets, such physics may be realized as critical Kondo entanglement of spin and charge and probed with optical conductivity. We present terahertz time-domain transmission spectroscopy on molecular beam epitaxy-grown thin films of YbRh2Si2, a model strange-metal compound. We observed frequency over temperature scaling of the optical conductivity as a hallmark of beyond-Landau quantum criticality. Our discovery suggests that critical charge fluctuations play a central role in the strange metal behavior, elucidating one of the long-standing mysteries of correlated quantum matter.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SCIENCE
ISSN
0036-8075
e-ISSN
1095-9203
Volume of the periodical
367
Issue of the periodical within the volume
6475
Country of publishing house
US - UNITED STATES
Number of pages
21
Pages from-to
„285“-„+“
UT code for WoS article
000509802700036
EID of the result in the Scopus database
—