Journal article
Effects of Reduced Dimensionality on Spin Dynamics in the Layered Perovskite La1.4Sr1.6Mn2O7
Abstract
We report zero-field muon spin rotation data in single crystals of La1.4Sr1.6Mn2O7 for T=5–325 K. The spin-lattice relaxation rate is spatially inhomogeneous below the 3D magnetic transition temperature TC and anisotropic above TC. We find evidence against 2D spin ordering or in-plane correlations above TC. Additionally, the very slow spin fluctuations found below TC in cubic (3D) perovskites like (La,Ca)MnO3 or (La,Sr)MnO3, and attributed to …
Authors
Heffner RH; MacLaughlin DE; Nieuwenhuys GJ; Kimura T; Luke GM; Tokura Y; Uemura YJ
Journal
Physical Review Letters, Vol. 81, No. 8, pp. 1706–1709
Publisher
American Physical Society (APS)
Publication Date
August 24, 1998
DOI
10.1103/physrevlett.81.1706
ISSN
0031-9007