THE SUPERCONDUCTIVITY, LATTICE PARAMETER AND THERMAL CHARACTERISTICS OF THE Yb-Ba-Cu(O, F) SYSTEM | Zendy

Yuling Zhang | Zendy; Jingkui Liang | Zendy; Rao Guang-Hui | Zendy; Xiangrong Cheng | Zendy; LI KE-SHENG | Zendy; LEI LING | Zendy; Zheng Dong-Ning | Zendy; Xie Sishen | Zendy

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THE SUPERCONDUCTIVITY, LATTICE PARAMETER AND THERMAL CHARACTERISTICS OF THE Yb-Ba-Cu(O, F) SYSTEM

Author(s) -

Yuling Zhang,

Jingkui Liang,

Rao Guang-Hui,

Xiangrong Cheng,

LI KE-SHENG,

LEI LING,

Zheng Dong-Ning,

Xie Sishen

Publication year - 1990

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.39.154

Subject(s) - lattice constant , orthorhombic crystal system , superconductivity , lattice (music) , materials science , oxygen , condensed matter physics , crystal structure , crystallography , physics , chemistry , diffraction , quantum mechanics , acoustics , optics

Superconductive samples with compositions of YbBa2Cu3F2xO7-x-δ (0≤x≤1) have been prepared. The variations of Tc, lattice constants and cell volume with the fluorine dose have been described. We report an experimental observation of an increase of Tc with a decrease of the oxygen content in the YbBa2Cu3F2xO7-x-δ (0 ≤x≤1). Therefore with the content of oxygen increasing, the lattice constants and cell volume of the superconducter become larger. The higher Tc, the larger is the velue of lattice constants (b-a) of the orthorhombic structure. It has been shown that the M-Cu-O or Cu-O part of the systems may have an essential role or the superconductivity.

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