DETERMINATION OF SPACE GROUP OF INCOMMENSURATE MODULATION STRUCTURE PHASES IN Bi HIGH TEMPERATURE SUPERCONDUCTORS

Acta Metall Sin

2009, Vol. 45

Issue (6): 673-679 DOI:

论文

Current Issue | Archive | Adv Search

DETERMINATION OF SPACE GROUP OF INCOMMENSURATE MODULATION STRUCTURE PHASES IN Bi HIGH TEMPERATURE SUPERCONDUCTORS

BIAN Weimin¹; ZHU Yimei²; ZHOU Lian³

1.Research Institute; Northeastern University; Shenyang 110004
2.Brookhaven National Laboratory; Upton NY 11973; USA
3.Northwest Institute for Nonferrous Metal Research; Xi'an 710016

Cite this article:

BIAN Weimin ZHU Yimei ZHOU Lian. DETERMINATION OF SPACE GROUP OF INCOMMENSURATE MODULATION STRUCTURE PHASES IN Bi HIGH TEMPERATURE SUPERCONDUCTORS. Acta Metall Sin, 2009, 45(6): 673-679.

Download:

PDF(3136KB)
Export: BibTeX | EndNote (RIS)

Abstract

The investigation of microstructures of the Bi--2212 and Bi--2223 phases in Bi high temperature superconductors is very significant for improving technology of production and researching superconducting properties and mechanisms. The determination of space groups for the Bi--2212 and Bi--2223 phases is a key problem, which is very complicated because of their incommensurate modulation structures. The supercell structures of the Bi--2212 and Bi--2223 phases with incommensurate modulation structures were determined by convergent beam electron diffraction (CBED). The point group of the supercell of the Bi--2212 phase with type A modulation structure is 2mm, its space group is I2mm. The point group of the supercell of the Bi--2223 phase with type B modulation structure is mmm, its space group is Ibmm. The effects of the rocking curve for the symmetries of CBED patterns were discussed according to experimental results. The simulation results of CBED patterns for the Bi--2212 phase confirmed the symmetries of CBED patterns to be the symmetries of the supercell with modulation structure, but not to be the symmetries of the subcell structure.

Key words: Bi high temperature superconductor convergent beam electron diffraction (CBED) Bi--2212 phase Bi--2223 phase incommensurate modulation structure space group

Received: 19 November 2008

ZTFLH:	TG111
	TG132.26

Fund:

Supported by US Department of Energy, Division of Materials Science, Office of Basic Energy Science (No. DE--AC02--76CH00016)

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	BIAN Wei-Min

URL:

https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2009/V45/I6/673

[1] Kaneko S, Akiyama K, Ito T, Hirabayashi Y, Funakubo H, Yoshimoto M. Jpn J Appl Phys, 2008; 47: 5602
[2] Mikhailov B P. Russ J Inorg Chem, 2004; 49(Suppl.1): S57
[3] Rath S, Woodall L, Deroche C, Seipel B, Schwaigerer F, Schmahl W W. Supercond Sci Technol, 2002; 15: 543
[4] Liu J, Li F H,Wan Z H, Fan H F,Wu J, Tamure T, Tanabe K. Acta Cryst, 2001; 57A: 540
[5] Budin H, Eibl O, Pongratz P, Skalichy P. Physica, 1993; 207C: 208
[6] Dou S X, Liu H K. Supercond Sci Technol, 1993; 6: 297
[7] Gao Y, Coppens P, Cox D E, Moodenbauh A R. Acta Cryst, 1993; 49A: 141
[8] Onozuka T, Nakakura S. J Electron Microsc, 2000; 49: 149
[9] Yang C Y, Wen J G, Yan Y F, Fung K K. Physica, 1989; 160C: 161
[10] Bordet P, Capponi J J, Chaillout C, Chenavas J, Hewat A W, Heway E A. Physica, 1988; 156C: 189
[11] Ito Y, Vlaicu A M, Mukoyama T, Sato S, Yoshikado S, Julien C, Chong I, Ikeda Y, Takano M, Sherman E Y. Phys Rev, 1998; 58B: 2851
[12] Zhang X F, Yan Y F, Fung K K. Mod Phys Lett, 1990; 4B: 605
[13] Withers R L, Anderson J S, Hyde B G, Thompson J G, Wallenberg L R, Fitzgerald J D, Stewart A M. J Phys, 1988; 21C: L417
[14] Steeds J W. In: Hran J I, Goldstein J I, Joy D C eds., Introduction to Analytical Electron Microscopy, New York: Plenum Press, 1979: 387
[15] Hahn T. International Tables for Crystallography. Vol.A, Boston: D.Reidel Publishing Company, 1983; 45
[16] Goodman P, Muller P, White T J, Withgers T J. Acta Cryst, 1992; 48B: 376
[17] Terauchi M, Tanaka M. Acta Cryst, 1993; 49A: 722
[18] Gladyshevkii R E, Fl¨ukiger R. Acta Cryst, 1996; 52B: 38

[1]	WANG Fuhui;BIAN Weimin Institute of Corrosion and Protection of Metals; Academia Sinica; Shenyang; Northeast University of Technology; Shenyang. DETERMINATION OF SPACE GROUP OF PrCo_(12)B_6 COMPOUND BY COVERGENT BEAM ELECTRON DIFFRACTION[J]. 金属学报, 1988, 24(4): 368-370.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed