Please use this identifier to cite or link to this item: http://hdl.handle.net/11717/3462
Title: Effect of La3+ substitution on the structure and superconductivity in TlBa2-xLaxCaCu2O7 (x=0.0 - 1.0)
Authors: Badri, V.
Varadaraju, U.V.
Keywords: Barium compounds; Calcium; Carrier concentration; Electric conductivity measurement; Electron transport properties; Lanthanum; Structure (composition); Substitution reactions; Superconductivity; Synthesis (chemical); Thallium compounds; X ray diffraction analysis; Hole carrier concentration; Substitutional levels; High temperature superconductors
Issue Date: 1995
Citation: Solid State Communications, 93(12), 1003-1007
Abstract: Substitution of La3+ in the BaO plane in TlBa2CaCu2O7 system reduces the hole carrier concentration in the CuO2 plane. The system TlBa2-xLaxCaCu2O7 has been synthesised and found to exhibit superconductivity with transition temperature Tc increasing from 80K for x=0.0 and passes through a maximum of 110K for x=0.3. Superconductivity is maintained even at higher substitutional levels (upto x=0.8) in contrast to RE3+ substitution at the Ca2+ site. ? 1995.
URI: http://dx.doi.org/10.1016/0038-1098(94)00921-X
http://hdl.handle.net/11717/3462
ISSN: 381098
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