| Evidence for charge Kondo effect in superconducting Tl-doped PbTe. | |
| | |
MedLine Citation:
|
PMID: 15904175 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
|
We report results of low-temperature thermodynamic and transport measurements of Pb1-xTlxTe single crystals for Tl concentrations up to the solubility limit of approximately x=1.5%. For all doped samples, we observe a low-temperature resistivity upturn that scales in magnitude with the Tl concentration. The temperature and field dependence of this upturn are consistent with a charge Kondo effect involving degenerate Tl valence states differing by two electrons, with a characteristic Kondo temperature T(K) approximately 6 K. The observation of such an effect supports an electronic pairing mechanism for superconductivity in this material and may account for the anomalously high T(c) values. |
| | |
Authors:
|
Y Matsushita; H Bluhm; T H Geballe; I R Fisher |
Related Documents
:
|
23605505 - Permeability of fluid-phase phospholipid bilayers: assessment and useful correlations f... 11015955 - Enhanced susceptibility in lnio3 perovskites ( l = la,pr,nd,nd0.5sm0. 5) 23565965 - The driving force for crystallization of anionic lipid membranes revealed by atomistic ... 23019555 - Nanotribology at high temperatures. 12770455 - Photoperiodism and control of summer diapause in the mediterranean tiger moth cymbaloph... 23047825 - Low melting li/k/cs acetate salt mixtures as new ionic media for catalytic applications... |
Publication Detail:
|
Type: Journal Article Date: 2005-04-21 |
Journal Detail:
|
Title: Physical review letters Volume: 94 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2005 Apr |
Date Detail:
|
Created Date: 2005-05-20 Completed Date: 2005-06-14 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
|
Languages: eng Pagination: 157002 Citation Subset: - |
Affiliation:
|
Department of Materials Science and Engineering and Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305-4045, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Dissipation-driven phase transition in two-dimensional Josephson arrays.
Next Document: Superconductivity in charge Kondo systems.