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Volumn 76, Issue 14, 2007, Pages

Investigations of the relationship between Tc and the superconducting gap under magnetic and nonmagnetic impurity substitutions in Y Ba2 Cu3 O7-δ

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EID: 35348911451     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.76.144505     Document Type: Article
Times cited : (25)

References (46)
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    • The calculation of the Raman response for an anisotropic s-wave superconductor presented in Ref. shows an increase of about 10% of the energy of the pair breaking peak in B1g symmetry with Γ Δ= nimp (π NF) =0.2. With NF ∼1 eV-1, it corresponds to an impurity level of 2.5% per Cu O2 plane, that would lead to a decrease of Tc of about 25 K, i.e., almost 30% of the Tc for the pristine sample. In the case of YBCO, only a small s -wave component in the superconducting gap exists, the energy shift expected is thus marginal.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.