Hydrothermal synthesis of superconductors Ba_(1-x)K_xBiO_3 and double perovskites Ba_(1-x)K_xBi_(1-y)Na_yO_3

Ganghua Zhang; Guobao Li; Fuqiang Huang

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Hydrothermal synthesis of superconductors Ba_(1-x)K_xBiO_3 and double perovskites Ba_(1-x)K_xBi_(1-y)Na_yO_3

机译：超导体Ba_（1-x）K_xBiO_3和双钙钛矿Ba_（1-x）K_xBi_（1-y）Na_yO_3的水热合成

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Superconductors Ba_(1-x)K_xBiO_3 and body-centered double perovskites Ba_(1-x)K_xBi_(1-y)Na_yO_3 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 T_c of Ba_(1-x)K_xBiO_3 decrease from 22 K (for x = 0.35) to 8 K (for x = 0.55) with increasing the K doping level.

机译：超导体Ba_（1-x）K_xBiO_3和以体心为中心的双重钙钛矿Ba_（1-x）K_xBi_（1-y）Na_yO_3已经通过简便的水热途径被选择性合成。初始试剂的适当比例和添加顺序，碱度，反应温度和时间是影响化合物晶体生长的关键因素。通过ICP，SEM，EDX和TEM研究检测晶体的纯度和均质性。磁测量表明，随着K掺杂水平的提高，Ba_（1-x）K_xBiO_3的超导转变温度T_c从22 K（对于x = 0.35）降低到8 K（对于x = 0.55）。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2011年第41期|共5页
作者
Ganghua Zhang; Guobao Li; Fuqiang Huang;
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正文语种 eng
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关键词
Hydrothermal synthesis; Crystal growth; Superconductor; Body-centered double perovskite;

机译：水热合成;晶体生长;超导体;体心双钙钛矿;

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1. Hydrothermal synthesis of superconductors Ba_(1-x)K_xBiO_3 and double perovskites Ba_(1-x)K_xBi_(1-y)Na_yO_3 [J] . Ganghua Zhang, Guobao Li, Fuqiang Huang Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2011,第41期

机译：超导体Ba_（1-x）K_xBiO_3和双钙钛矿Ba_（1-x）K_xBi_（1-y）Na_yO_3的水热合成
2. Relationship between the electronic and local structure in BaBi_(1-x)Pb_xO_3 and Ba_(1-x)K_xBiO_3 perovskites [J] . Alexander Ignatov Journal of synchrotron radiation . 1999,第Pta3期

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3. EPR observation of anomalous triplet states in Ba_(1-x)K_xBiO_3 and BaPb_yBi_(1-y)O_3 systems [J] . A.I. Golovashkin, A. Yakubovskii, S. Gudenko, Physica, C. Superconductivity and its applications . 1999,第0期

机译：EPR观测Ba_（1-x）K_xBiO_3和BaPb_yBi_（1-y）O_3系统中异常三重态
4. A NEW SUBSTRATE FOR LIQUID PHASE EPITAXY OF SUPERCONDUCTING Ba_(1-x)K_xBiO_3 FILMS [C] . A. G. Soldatov, S. N. Barilo, S.V. Shiryaev, Fourth International Conference on Single Crystal Growth and Heat amp; Mass Transfer (ICSC - 2001) Vol.1; Sep 24-28, 2001; Obninsk, Russia . 2001

机译：Ba_（1-x）K_xBiO_3薄膜超液相液相扩散的新基质
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机译：超导能量缺口$ \ rm Ba_ {1-x} K_xBiO_3 $：温度依赖

Hydrothermal synthesis of superconductors Ba_(1-x)K_xBiO_3 and double perovskites Ba_(1-x)K_xBi_(1-y)Na_yO_3

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