Hydrothermal synthesis of superconductors Ba1-xKxBiO3 and double perovskites Ba1-xKxBi1-yNayO3

被引：21

作者：

Zhang, Ganghua ^{[1
]}

Li, Guobao ^{[1
]}

Huang, Fuqiang ^{[1
]}

Liao, Fuhui ^{[1
]}

Li, Kuo ^{[1
]}

Wang, Yinxia ^{[1
]}

Lin, Jianhua ^{[1
]}

机构：

[1] Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 41期

基金：

中国国家自然科学基金;

关键词：

Hydrothermal synthesis; Crystal growth; Superconductor; Body-centered double perovskite; STRUCTURAL PHASE-DIAGRAM; LOW-TEMPERATURE; SYSTEM; CRYSTALS; BISMUTH;

D O I：

10.1016/j.jallcom.2011.08.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Superconductors Ba1-xKxBiO3 and body-centered double perovskites Ba1-xKxBi1-yNayO3 have been selectively synthesized by a facile hydrothermal route. The appropriate ratio and adding sequence of initial reagents, alkalinity, reaction temperature and time are the critical factors that influence the crystal growth of the compounds. The purity and homogeneity of the crystals were detected by the ICP, SEM, EDX and TEM studies. Magnetic measurements show that the superconducting transition temperatures TC of Ba1-xKxBiO3 decrease from 22 K (for x = 0.35) to 8 K (for x = 0.55) with increasing the K doping level. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：9804 / 9808

页数：5

共 26 条

[21] STRUCTURAL PHASE-DIAGRAM OF THE BA1-XKXBIO3 SYSTEM [J].