Effect of Li doping and Li, La co-doping on the structure and physical properties of LaBa2Cu3Oy

Biao Liu,Gaojie Xu,Ruhua Tao,Zhuan Xu,Jingqin Shen,Qirong Pu,Guansheng Wang,Zejun Ding

Physica C: Superconductivity（2004）

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摘要

Polycrystalline samples of LaBa2Cu3−xLixOy (0⩽x⩽0.7) and La1+xBa2−xCu3−xLixOy (0⩽x⩽0.7) were synthesized by the solid-state reaction method. The structure and physical properties were investigated by means of X-ray diffraction (XRD), resistivity, infrared (IR) transmission spectra and electronic spin resonance (ESR). With Li doping, an orthorhombic–tetragonal transition takes place as 0.3更多

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关键词

74.25.Fy,74.25.Kc,74.25.Ha,74.72.−h,74.72.Bk,61.10.−i

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