Bad-metal relaxation dynamics in a Fermi lattice gas. View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2019-12

AUTHORS

W Xu, W R McGehee, W N Morong, B DeMarco

ABSTRACT

Electrical current in conventional metals is carried by electrons that retain their individual character. Bad metals, such as the normal state of some high-temperature superconductors, violate this scenario, and the complete picture for their behavior remains unresolved. Here, we report phenomena consistent with bad-metal behaviour in an optical-lattice Hubbard model by measuring the transport lifetime for a mass current excited by stimulated Raman transitions. We demonstrate incompatibility with weak-scattering theory and key characteristics of bad metals: anomalous resistivity scaling consistent with T-linear behavior, the onset of incoherent transport, and the approach to the Mott-Ioffe-Regel limit. Our work demonstrates a direct method for determining the transport lifetime, which is critical to theory but difficult to measure in materials, and exposes minimal ingredients for bad-metal behavior. More... »

PAGES

1588

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/s41467-019-09526-x

DOI

http://dx.doi.org/10.1038/s41467-019-09526-x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1113300660

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30962438


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Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1038/s41467-019-09526-x'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1038/s41467-019-09526-x'


 

This table displays all metadata directly associated to this object as RDF triples.

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