Journal article
Reduction of Ordered Moment and Néel Temperature of Quasi-One-Dimensional Antiferromagnets Sr2CuO3 and Ca2CuO3
Abstract
We report elastic neutron diffraction and muon spin relaxation ( μSR) measurements of the quasi-one-dimensional antiferromagnets Sr2CuO3 and Ca2CuO3, which have extraordinarily reduced TN/J ratios. We observe almost resolution-limited antiferromagnetic Bragg reflections in Sr2CuO3 and obtain a reduced ordered moment size of ∼0.06μB. We find that the ratio of ordered moment size μ(Ca2CuO3)/μ(Sr2CuO3)=1.5(1) roughly scales with their Néel …
Authors
Kojima KM; Fudamoto Y; Larkin M; Luke GM; Merrin J; Nachumi B; Uemura YJ; Motoyama N; Eisaki H; Uchida S
Journal
Physical Review Letters, Vol. 78, No. 9, pp. 1787–1790
Publisher
American Physical Society (APS)
Publication Date
March 3, 1997
DOI
10.1103/physrevlett.78.1787
ISSN
0031-9007