2001/10/24 by J. M. Hernandez, J. M. Hernández, Francesc Torres +4
Chemistry · Materials Science · Physics and Astronomy · #Advanced NMR Techniques and Applications #Magnetic properties of thin films #Magnetism in coordination complexes #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.66.161407
11 pages, 3 figures
arxiv created 2001/10/24 · openalex publication_date 2002/10/30 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
The question addressed in this paper is that of the influence of the density of dislocations on the spin tunneling in Mn12 clusters. We have determined the variation in the mosaicity of fresh and thermally treated single crystals of Mn12 by analyzing the widening of low angle x-ray diffraction peaks. It has also been well established from both isothermal magnetization and relaxation experiments that there is a broad distribution of tunneling rates which is shifted to higher rates when the density of dislocations increases.