STRUCTURAL ASPECTS OF MODULATED SUPERCONDUCTING OXIDES - APPLICATION TO HG1-XTLXSR4-YBAYCU2CO3O7-DELTA

Authors
HUVE M VANTENDELOO G AMELINCKX S HERVIEU M RAVEAU B
Citation
M. Huve et al., STRUCTURAL ASPECTS OF MODULATED SUPERCONDUCTING OXIDES - APPLICATION TO HG1-XTLXSR4-YBAYCU2CO3O7-DELTA, Journal of solid state chemistry, 120(2), 1995, pp. 332-342
Citations number
11
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry → ACNP
ISSN journal
00224596
Volume
120
Issue
2
Year of publication
1995
Pages
332 - 342
Database
ISI
SICI code
0022-4596(1995)120:2<332:SAOMSO>2.0.ZU;2-V
Abstract
Superconducting oxides of the type Hg1-xTlxSr4-yBayCu2 CO3O7-delta sho w complex modulated structures with a modulation vector along [010] an d a wavelength varying between 6 and 8 times the basic perovskite unit . High resolution electron microscopy indicates that the modulation is introduced by an ordering of CO, groups on the (Hg-TI) sublattice. Su ch modulated structures are discussed in general; they are the result of a minimization of the internal stresses due to the differences in i onic sizes of the constituents. (C) 1995 Academic Press, Inc.