Bond-valence analysis of charge distribution in the spin ladders of [M2Cu2O3](m)[CuO2](n)-type cuprates with m=n=1

Authors
Brydon, P Szymczak, P Leonyuk, L Shvanskaya, L
Citation
P. Brydon et al., Bond-valence analysis of charge distribution in the spin ladders of [M2Cu2O3](m)[CuO2](n)-type cuprates with m=n=1, PHIL MAG L, 79(6), 1999, pp. 383-387
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHILOSOPHICAL MAGAZINE LETTERS
ISSN journal
09500839 → ACNP
Volume
79
Issue
6
Year of publication
1999
Pages
383 - 387
Database
ISI
SICI code
0950-0839(199906)79:6<383:BAOCDI>2.0.ZU;2-O
Abstract
The bond-valence-sum method is used to calculate the hole distribution in t he spin ladders of [M2Cu2O3](m)[CuO2](n)-type cuprates with m = n = 1 (wher e M are divalent or trivalent cations). It is shown that the appearance of superconductivity in this system is related to hole transfer from chain pla nes to the spin-ladder plane. The role of the valency and size of the M ato ms is discussed in detail.