SYNTHESIS AND X-RAY-POWDER DIFFRACTION ANALYSIS OF THE HIGH-TC SUPERCONDUCTOR HGBA2CA2CU3O8Q-DELTA

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	SYNTHESIS AND X-RAY-POWDER DIFFRACTION ANALYSIS OF THE HIGH-TC SUPERCONDUCTOR HGBA2CA2CU3O8Q-DELTA
	SHAO, HM ; ZHOU, K ; RUI, Y ; SHEN, JC ; XU, XN ; JI, HL ; YAO, XX ; SHEN, LJ ; WU, Z ; LI, ZJ ; ZHANG, GN ; CHE, GC ; ZHAO, ZX
刊名	SOLID STATE COMMUNICATIONS
	1994
卷号	92 期号:7 页码:595
关键词	CRYSTAL-STRUCTURE CU-O HGBA2CACU2O6+DELTA TEMPERATURE
ISSN号	0038-1098
通讯作者	SHAO, HM (reprint author), NANJING UNIV,NATL LAB SOLID STATE MICROSTRUCT,DEPT PHYS,NANJING 210008,PEOPLES R CHINA.
中文摘要	The third member (Hg-1223) of the recently-discovered homologous series HgBa2Can-1CunO2n+2+delta, which having a T(c) of 118 K (assynthesized sample) and 133 K (oxygen-annealed sample), was successfully prepared by solid state reaction and short time annealing technique using the mixtures of metal oxides HgO, BaO, CaO and CuO with starting composition HgBa2Ca2Cu3Oy. We found that the combination of very short annealing time with optimum temperatures 715-725-degrees-C gives rise to a very effective sintering of the constituents and avoids an excessive loss of Hg. This also means that the reaction should be followed by X-ray powder diffraction analysis of the material at each step. Sample so obtained displays a sharp superconducting transition determined both magnetically and resistively. The X-ray diffraction patterns of the 118 K phase and the 133 K phase both indicate a nearly single phase, corresponding to the tetragonal structure of space group of P4/mmm and with lattice parameters a = 0.385 nm and c = 1.585 nm. Energy dispersive X-ray spectroscopic analysis (EDX) data of several flat grains of the Hg-1223 sample shows that the cation stoichiometry is in agreement with the proposed chemical formulae.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/54415]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	SHAO, HM,ZHOU, K,RUI, Y,et al. SYNTHESIS AND X-RAY-POWDER DIFFRACTION ANALYSIS OF THE HIGH-TC SUPERCONDUCTOR HGBA2CA2CU3O8Q-DELTA[J]. SOLID STATE COMMUNICATIONS,1994,92(7):595.
APA	SHAO, HM.,ZHOU, K.,RUI, Y.,SHEN, JC.,XU, XN.,...&ZHAO, ZX.(1994).SYNTHESIS AND X-RAY-POWDER DIFFRACTION ANALYSIS OF THE HIGH-TC SUPERCONDUCTOR HGBA2CA2CU3O8Q-DELTA.SOLID STATE COMMUNICATIONS,92(7),595.
MLA	SHAO, HM,et al."SYNTHESIS AND X-RAY-POWDER DIFFRACTION ANALYSIS OF THE HIGH-TC SUPERCONDUCTOR HGBA2CA2CU3O8Q-DELTA".SOLID STATE COMMUNICATIONS 92.7(1994):595.