Composition characterization of Bi2Sr2CaCu2Ox single crystals by differential dissolution technique

被引：12

作者：

Vasilyeva, IG ^{[1
]}

Malakhov, VV

Dovlitova, LS

Bach, H

机构：

[1] Russian Acad Sci, Inst Inorgan Chem, Novosibirsk 630090, Russia

[2] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[3] Ruhr Univ Bochum, D-44780 Bochum, Germany

来源：

MATERIALS RESEARCH BULLETIN | 1999年 / 34卷 / 01期

关键词：

superconductors; oxides; defects; microstructure;

D O I：

10.1016/S0025-5408(98)00207-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new method, differential dissolution (DD), was used to characterize the real stoichiometry of 2-3 mm(2) Bi-2212 samples, which looked like single crystals according to optical microscopy. The shape of the dissolution kinetic curves, used as an indicator of the crystalline state, has shown that the crystals are not real single crystals, but consist of thin single-crystal layers packed along the c axis. The stoichiogram values recorded as a function of time or crystal dissolution degree were used to determine the composition and thickness of each layer, as well as the composition of the interfaces. The results obtained by the DD method, along with data from other techniques, are discussed in terms of the chemical inhomogeneity of Bi-2212 crystals grown by different methods. (C) 1999 Elsevier Science Ltd.

引用

页码：81 / 92

页数：12

共 11 条

[1] The influence of the structure on the electrical and magnetic properties of Bi2Sr2CaCu2O8+delta single crystals [J].

Aldica, G ;

Crisan, A ;

VelterStefanescu, M ;

Mandache, S ;

Bunescu, MC .

JOURNAL OF MATERIALS SCIENCE, 1997, 32 (05) :1195-1199

[2] ANISOTROPY OF THE REFLECTIVITY SPECTRA OF A BISRCACUO SINGLE-CRYSTAL WITHIN THE (001)-PLANE [J].

HUANG, DJ ;

ZHU, B ;

MING, H ;

GU, GD ;

CAI, WL ;

RUAN, YZ .

APPLIED PHYSICS LETTERS, 1991, 58 (10) :1098-1099

[3] Chemical inhomogeneity and reactions of BiSrCaCuO surfaces detected by synchrotron imaging spectromicroscopy [J].

Hwu, Y ;

Cheng, NF ;

Lee, SD ;

Tung, CY ;

Almeras, P ;

Berger, H .

APPLIED PHYSICS LETTERS, 1996, 69 (19) :2924-2926

[4] THE ORIGIN OF THE SUPERSTRUCTURE IN BI2SR2CACU2O8+DELTA AS REVEALED BY SCANNING TUNNELING MICROSCOPY [J].

KIRK, MD ;

NOGAMI, J ;

BASKI, AA ;

MITZI, DB ;

KAPITULNIK, A ;

GEBALLE, TH ;

QUATE, CF .

SCIENCE, 1988, 242 (4886) :1673-1675

[5] SUPERSTRUCTURE IN THIN-FILMS OF BI-BASED COMPOUNDS ON MGO [J].

KOJIMA, K ;

SCHLOM, DG ;

KURODA, K ;

TANIOKU, M ;

HAMANAKA, K ;

ECKSTEIN, JN ;

HARRIS, JS .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1990, 29 (09) :L1638-L1641

[6] Magnetic ac susceptibility in Bi2Sr2CaCu2O8 single crystals [J].

Mandache, S ;

Crisan, A ;

Aldica, G ;

Popa, S .

JOURNAL OF SUPERCONDUCTIVITY, 1997, 10 (03) :211-214

[7] PROFILE-IMAGING OF WAVY CLEAVAGE SURFACE OF BI2SR2CACU2OY BY HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPY [J].

MATSUI, Y ;

MAEDA, H ;

TANAKA, Y ;

HORIUCHI, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1989, 28 (06) :L946-L948

[8] Different epitaxial growth modes of Bi2Sr2Ca2Cu3Ox on MgO [J].

Ohkubo, M ;

Brecht, E ;

Linker, G ;

Geerk, J ;

Meyer, O .

APPLIED PHYSICS LETTERS, 1996, 69 (04) :574-576

[9] STRUCTURAL CHARACTERIZATION OF EPITAXIAL BISRCACUO FILMS ON MGO SUBSTRATES [J].

RANNO, L ;

PERRIERE, J ;

SCHNECK, J .

PHYSICA C, 1995, 245 (3-4) :295-300

[10] New method of microphase and chemical analysis as applied to the YBaCuO thin films [J].

Vasilyeva, IG ;

Malakhov, VV ;

Vlasov, AA ;

Predtechensky, MR .

THIN SOLID FILMS, 1997, 292 (1-2) :85-90

← 1 2 →