STRUCTURAL FEATURES OF THE INCOMMENSURATE MODULATION IN THE PB-DOPED BI-2223 HIGH-TC PHASE REVEALED BY DIRECT-METHOD ELECTRON-DIFFRACTION ANALYSIS

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	STRUCTURAL FEATURES OF THE INCOMMENSURATE MODULATION IN THE PB-DOPED BI-2223 HIGH-TC PHASE REVEALED BY DIRECT-METHOD ELECTRON-DIFFRACTION ANALYSIS
	MO, YD ; CHENG, TZ ; Fan, HF ; LI, JQ ; SHA, BD ; ZHENG, CD ; LI, FH ; ZHAO, ZX
刊名	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
	1992
卷号	5 期号:2 页码:69
关键词	CRYSTAL-STRUCTURES SUPERSPACE
ISSN号	0953-2048
通讯作者	MO, YD (reprint author), CHINESE ACAD SCI,INST PHYS,BEIJING 100080,PEOPLES R CHINA.
中文摘要	Structural modulation waves in the Pb-doped Bi-2223 (Bi2Sr2Ca2Cu3Ox) phase are observed for the first time on the potential distribution function projected along the a axis. The newly developed multidimensional direct methods were used. Unlike the previous techniques, there is no need to assume any modulation model before the modulation waves can be seen directly from the resulting Fourier map. The symmetry of the title compound belongs to the four-dimensional space group P111BAR(Bbmb) with three-dimensional unit cell parameters a = 5.49 angstrom, b = 5.41 angstrom, c = 37.1 angstrom, alpha = beta = gamma = 90-degrees and the modulation wavevector q = 0.117b*. Occupational and positional modulations are obvious for most atoms. Disordered oxygen atoms arranged perpendicular to the b axis bridging the Cu(2)-Ca-Cu(1)-Ca-Cu(2) layers were observed.
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/311004/53308]
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	MO, YD,CHENG, TZ,Fan, HF,et al. STRUCTURAL FEATURES OF THE INCOMMENSURATE MODULATION IN THE PB-DOPED BI-2223 HIGH-TC PHASE REVEALED BY DIRECT-METHOD ELECTRON-DIFFRACTION ANALYSIS[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,1992,5(2):69.
APA	MO, YD.,CHENG, TZ.,Fan, HF.,LI, JQ.,SHA, BD.,...&ZHAO, ZX.(1992).STRUCTURAL FEATURES OF THE INCOMMENSURATE MODULATION IN THE PB-DOPED BI-2223 HIGH-TC PHASE REVEALED BY DIRECT-METHOD ELECTRON-DIFFRACTION ANALYSIS.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,5(2),69.
MLA	MO, YD,et al."STRUCTURAL FEATURES OF THE INCOMMENSURATE MODULATION IN THE PB-DOPED BI-2223 HIGH-TC PHASE REVEALED BY DIRECT-METHOD ELECTRON-DIFFRACTION ANALYSIS".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 5.2(1992):69.