電化學合成鋇鉀鉍超導氧化物單晶

Electrochemical Synthesis of Superconducting Ba(1-x)K_xBiO_3 Single Crystal

10.6623/chem.1992019

唐宏怡(H. Y. Tang)；陳文鈴(W. L. Chen)；吳茂昆(M. K. Wu)

化學

50卷2期（1992 / 06 / 01）

172 - 174

繁體中文

低溫陽極氧化長晶技術可被成功應用於Ba_(1-x)K_xBiO_3超導單晶之合成。由於鉍金屬平均氧化價數與超導性具很強關連性，經由電化學方法合成，則電極表面之氧化能力可被控制，進而能合成組成均勻之Ba_(1-x)K_xBiO_3晶體。

A low temperature electrocrystal growth technique utilizing alkali hydroxide as a flux has been developed. One of the unique advantages of electrocrystallization is its capability of precisely controlling stoichiometry and oxidation states by this electrically driven method. Its utility for growing high quality Ba(1-x)K_xBiO_3 crystalline superconductors is demonstrated by the fact that the crystals prepared display the sharpest Tc in magnetic susceptibility measurements yet obtained.