The estimation of coherence length for electron-doped superconductor Nd₂₋xCexCuO₄₊δ

Autor: Charikova, T.B., Harus, G.I., Shelushinina, N.G., Sochinskaya, O.E., Ivanov, A.A.
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Popis: Results of low-temperature upper critical field measurements for Nd₂₋xCexCuO₄₊δ single crystals with various x and nonstoichiometric disorder (δ) are presented. The coherence length of pair correlation ξ and the product kFξ , where kF is the Fermi wave vector, are estimated. It is shown that for investigated single crystals parameter kFξ ≅ 100 and thus phenomenologically NdCeCuO-system is in a range of Cooper-pair-based (BCS) superconductivity.
Databáze: OpenAIRE