New modulated structure in a Pb-doped Bi-Ca-Sr-Cu-O superconductor | Zendy

R. Ramesh | Zendy; G. van Tendeloo | Zendy; G. Thomas | Zendy; S. M. Green | Zendy; Haoxiang Luo | Zendy

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New modulated structure in a Pb-doped Bi-Ca-Sr-Cu-O superconductor

Author(s) -

R. Ramesh,

G. van Tendeloo,

G. Thomas,

S. M. Green,

Haoxiang Luo

Publication year - 1988

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.100507

Subject(s) - superconductivity , diffraction , doping , modulation (music) , materials science , spots , x ray crystallography , condensed matter physics , high temperature superconductivity , analytical chemistry (journal) , chemistry , crystallography , optics , optoelectronics , physics , chromatography , acoustics

A new modulated structure has been observed in a Pb‐doped Bi‐Ca‐Sr‐Cu‐O superconductor (Tc,0=105 K) in addition to the incommensurate modulated structure reported by several researchers. This new modulation occurs in the b* direction and shows up as satellite spots to each of the original diffracted spots. Upon cooling to 88 K the diffraction spots due to the original modulation disappear, while the spots due to the new modulation remain. In the case of the undoped samples, the modulation does not disappear upon cooling to 30 K, which is below the Tc,0 of the sample (∼75 K).

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