Journal article
Frustration-driven spin freezing in the S=12 fcc perovskite Sr2MgReO6
Abstract
The ordered perovskite Sr2MgReO6 of tetragonal symmetry [I4/m, a=5.5670(1) Å, c=7.9318(2) Å at T=295 K] has been synthesized and characterized by x-ray and neutron diffraction, thermal gravimetric analysis dc susceptibility, heat capacity, and muon spin relaxation (μSR) experiments. The B site cations Re6+ and Mg2+ appear to be ordered due the large difference in formal charge. The Re6+ magnetic ions form a distorted fcc lattice of S=12 spins …
Authors
Wiebe CR; Greedan JE; Kyriakou PP; Luke GM; Gardner JS; Fukaya A; Gat-Malureanu IM; Russo PL; Savici AT; Uemura YJ
Journal
Physical Review B, Vol. 68, No. 13,
Publisher
American Physical Society (APS)
Publication Date
October 1, 2003
DOI
10.1103/physrevb.68.134410
ISSN
2469-9950