LAYERED-TYPE ANTIFERROMAGNETIC STATE IN DOUBLE-LAYERED MANGANITES - (LA1-ZNDZ)(2-2X)SR1+2XMN2O7

Authors
MORITOMO Y MARUYAMA Y AKIMOTO T NAKAMURA A
Citation
Y. Moritomo et al., LAYERED-TYPE ANTIFERROMAGNETIC STATE IN DOUBLE-LAYERED MANGANITES - (LA1-ZNDZ)(2-2X)SR1+2XMN2O7, Journal of the Physical Society of Japan, 67(2), 1998, pp. 405-408
Citations number
13
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
67
Issue
2
Year of publication
1998
Pages
405 - 408
Database
ISI
SICI code
0031-9015(1998)67:2<405:LASIDM>2.0.ZU;2-B
Abstract
Anisotropic magnetic and transport properties have been investigated f or single crystals of layered-perovskite manganites (La1-zNdz)(2-2x)Sr 1+2xMn2O7 as a function of then doping level x and averaged ionic radi us z of the rare-earth ion. The ferromagnetic metallic (FM) state obse rved in La1.2Sr1.8Mn2O7 (x = 0.4; z = 0.0) disappears with increasing x or z, and the ground state is replaced by a layered antiferromagneti c (layered-AF) state beyond x similar to 0.5. Thus obtained phase diag ram is discussed in terms of variation of the e(g)-band structure with the band-filling (= 1 - x).