Experimental evidence of the dependence of spin tunnelling on the concentration of dislocations in Mn12 crystals

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We present experimental results on resonant spin tunnelling in a single crystal of Mn$_{12}$-2Cl benzoate with different concentration of dislocations. The time evolution of the magnetisation follows the stretched exponential over a few time decades. The values of parameters of stretched exponential deduced from experiment have been used to determine the concentration of dislocations before and after the cooling-annealing process, using the algorithm recently suggested by Garanin and Chudnovsky.
7 pages, 2 figures

Keywords

Materials Science

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/18436

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0110538
 http://arxiv.org/abs/cond-mat/0110538

Collections

arXiv