Butterfly hysteresis loop and dissipative spin reversal in the S=1/2, V15 molecular complex

Preprint

18 February 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9910117

Abstract

Time resolved magnetization measurements have been performed on a spin 1/2 molecular complex, so called V$_{15}$. Despite the absence of a barrier, magnetic hysteresis is observed over a timescale of several seconds. A detailed analysis in terms of a dissipative two level model is given, in which fluctuations and splittings are of same energy. Spin-phonon coupling leads to long relaxation times and to a particular "butterfly" hysteresis loop.

Keywords

BUTTERFLY HYSTERESIS
MOLECULAR COMPLEX
DISSIPATIVE SPIN
HYSTERESIS LOOP
V15 MOLECULAR
SPIN REVERSAL
PHONON

All Related Versions

Version 1, 1999-10-07, ArXiv
Version 2, 2000-02-18, ArXiv
Published version: Physical Review Letters, 84 (15), 3454.

This publication has 0 references indexed in Scilit: