Antiferromagnetic ordering of Ru and Gd in superconducting RuSr2GdCu2O8

Authors
Lynn, JW Keimer, B Ulrich, C Bernhard, C Tallon, JL
Citation
Jw. Lynn et al., Antiferromagnetic ordering of Ru and Gd in superconducting RuSr2GdCu2O8, PHYS REV B, 61(22), 2000, pp. R14964-R14967
Citations number
26
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
61
Issue
22
Year of publication
2000
Pages
R14964 - R14967
Database
ISI
SICI code
0163-1829(20000601)61:22<R14964:AOORAG>2.0.ZU;2-6
Abstract
Neutron diffraction has been used to study the magnetic order in RuSr2GdCu2 O8. The Ru moments order with the previously reported onset of ferromagneti sm. antiferromagnetically at T-N = 136(2) K, coincident Neighboring spins a re antiparallel in all three directions, with a low T moment of 1.18(6)mu(B ) along the c axis. Our measurements put an upper limit of similar to 0.1 m u(B) to any net zero-field moment, with fields exceeding OAT needed to indu ce a measurable magnetization. The Gd ions order independently at T-N = 2.5 0(2) K with the same spin configuration.