Antiferromagnetic ordering of S=1/2 triangles in La4Cu3MoO12

Authors
Azuma, M Odaka, T Takano, M Vander Griend, DA Poeppelmeier, KR Narumi, Y Kindo, K Mizuno, Y Maekawa, S
Citation
M. Azuma et al., Antiferromagnetic ordering of S=1/2 triangles in La4Cu3MoO12, PHYS REV B, 62(6), 2000, pp. R3588-R3591
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
6
Year of publication
2000
Pages
R3588 - R3591
Database
ISI
SICI code
0163-1829(20000801)62:6<R3588:AOOSTI>2.0.ZU;2-R
Abstract
Magnetic properties of a cupric triangular cluster compound La4Cu3MoO12 wer e investigated. Susceptibility data show that paramagnetic cupric spin (S=1 /2) above room temperature forms S=1/2 trimers at lower temperatures becaus e of strong intratrimer antiferromagnetic interactions. The cluster moments acquire antiferromagnetic order below 2.6 K. The trimers can be polarized in an external field of 20 T at 1.3 K. The magnetization remains nearly con stant at 1 mu(B) per trimer up to a magnetization plateau at 55 T.