Document Detail

Superconductivity and structural distortion in BaPt2As2.
MedLine Citation:
PMID:  25483554     Owner:  NLM     Status:  Publisher    
We report the synthesis of BaPt2As2 single crystals and the discovery of superconductivity and a structural phase transition in this compound by measuring the electrical resistivity, magnetic susceptibility and specific heat as well as the x-ray diffraction at low temperatures. BaPt2As2 crystallizes in the CaBe2Ge2-type tetragonal structure (P4/nmm) at room temperature and undergoes a first-order structural transition at TS ≃ 275 K, which is likely to be associated with a charge-density-wave (CDW) instability. BCS-like superconductivity with two subsequent transitions Tc1 ≃ 1.67 K and Tc2 ≃ 1.33 K is observed. Our results demonstrate that BaPt2As2 may serve as a new system for studying the interplay of superconductivity and the CDW order.
W B Jiang; C Y Guo; Z F Weng; Y F Wang; Y H Chen; Y Chen; G M Pang; T Shang; X Lu; H Q Yuan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-08
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  27     ISSN:  1361-648X     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-8     Completed Date:  -     Revised Date:  2014-12-9    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  -    
Other Details:
Languages:  ENG     Pagination:  022202     Citation Subset:  -    
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