Direct imaging of charge modulation

被引：22

作者：

Zhu, YM ^{[1
]}

Tafto, J ^{[1
]}

机构：

[1] UNIV OSLO,DEPT PHYS,OSLO 3,NORWAY

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.76.443

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron diffraction calculation suggest that a modulation in the density of valence electrons may dominate the images of Bi2Sr2CaCu2O8+delta under certain experimental conditions. This prediction is supported by electron microscope experiments where we observe modulation that we attribute to charge transfer over a distance of about 1 nm.

引用

收藏

页码：443 / 446

页数：4

相关论文

共 15 条

[1] NBEAM LATTICE IMAGES .3. UPPER LIMITS OF IONICITY IN W4NB26O77 [J].

ANSTIS, GR ;

LYNCH, DF ;

MOODIE, AF ;

OKEEFE, MA .

ACTA CRYSTALLOGRAPHICA SECTION A, 1973, A 29 (MAR1) :138-&

[2] STRUCTURE ANALYSIS OF SINGLE CRYSTALS BY ELECTRON DIFFRACTION .1. TECHNIQUES [J].

COWLEY, JM .

ACTA CRYSTALLOGRAPHICA, 1953, 6 (06) :516-521

[3] COMBINED X-RAY SINGLE-CRYSTAL AND NEUTRON POWDER REFINEMENT OF MODULATED STRUCTURES AND APPLICATION TO THE INCOMMENSURATELY MODULATED STRUCTURE OF BI2SR2CACU2O8+Y [J].

GAO, Y ;

COPPENS, P ;

COX, DE ;

MOODENBAUGH, AR .

ACTA CRYSTALLOGRAPHICA SECTION A, 1993, 49 :141-148

[4] DISTRIBUTION OF HOLES IN YBA2CU3O7 FROM CONVERGENT BEAM ELECTRON-DIFFRACTION [J].

GJONNES, K ;

BOE, N ;

TAFTO, J .

ULTRAMICROSCOPY, 1993, 48 (1-2) :37-41

[5] ELECTRONIC-STRUCTURE CALCULATION OF THE HOLE-CARRIER-DENSITY DISTRIBUTION IN BI2SR2CUO6, BI2SR2CACU2O8, AND BI2SR2CA2CU3O10 SUPERCONDUCTORS [J].

GUPTA, RP ;

GUPTA, M .

PHYSICAL REVIEW B, 1994, 49 (18) :13154-13159

[6] STRUCTURE-ANALYSIS OF THE BI2(SR,CA)3CU2O8.2 SUPERCONDUCTING CRYSTAL BASED ON THE COMPUTER-SIMULATION OF HRTEM IMAGES [J].

HORIUCHI, S ;

MAEDA, H ;

TANAKA, Y ;

MATSUI, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (07) :L1172-L1174

[7] SINGLE-CRYSTAL X-RAY STRUCTURE-ANALYSIS OF BI2(SR, CA)2CUOX AND BI2(SR,CA)3CU2OX SUPERCONDUCTORS [J].

IMAI, K ;

NAKAI, I ;

KAWASHIMA, T ;

SUENO, S ;

ONO, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (09) :L1661-L1664

[8]

KILAAS R, 1987, 22ND P ANN M MICR AN, P293

[9] POSSIBLE MODEL OF THE MODULATED STRUCTURE IN HIGH-TC SUPERCONDUCTOR IN A BI-SR-CA-CU-O SYSTEM REVEALED BY HIGH-RESOLUTION ELECTRON-MICROSCOPY [J].

MATSUI, Y ;

MAEDA, H ;

TANAKA, Y ;

HORIUCHI, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (03) :L372-L375

[10] TWINS AND INTERGROWTH DEFECTS IN HIGH-TC BI-SR-CA-CU-O SUPERCONDUCTOR EXAMINED BY HIGH-RESOLUTION ELECTRON-MICROSCOPY [J].

MATSUI, Y ;

MAEDA, H ;

TANAKA, Y ;

TAKAYAMAMUROMACHI, E ;

TAKEKAWA, S ;

HORIUCHI, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (05) :L827-L829