TEMPERATURE-DEPENDENCE OF THE SUBLATTICE MAGNETIZATION OF THE ANTIFERROMAGNET CA0.85SR0.15CUO2

Authors
LOMBARDI A MALI M ROOS J BRINKMANN D MANGELSCHOTS I
Citation
A. Lombardi et al., TEMPERATURE-DEPENDENCE OF THE SUBLATTICE MAGNETIZATION OF THE ANTIFERROMAGNET CA0.85SR0.15CUO2, Physical review. B, Condensed matter, 54(1), 1996, pp. 93-96
Citations number
22
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
1
Year of publication
1996
Pages
93 - 96
Database
ISI
SICI code
0163-1829(1996)54:1<93:TOTSMO>2.0.ZU;2-S
Abstract
We report the first Cu nuclear magnetic resonance study of the antifer romagnetic (AF) infinite-layer compound Ca(0.85)SR(0.15)CuO(2) perform ed between 5.4 and 534.1 K. The major results are: The magnetic moment s remain parallel to the CuO2 planes, at least up to 400 K. The AF str ucture has a stronger three-dimensional (3D) character than the quasi- two-dimensional structures YBa2Cu3O6 and La2CuO4. The critical behavio r of the sublattice magnetization near T-N (539 K) yields the critical exponent beta = 0.31(1) indicating a crossover to a 3D structure.