Work

Magnetic Relaxation in Big Magnetic Molecules

Year: 1994

Type: article

Abstract: The relaxation time of the magnetization of a big magnetic molecule is evaluated. Isotropic exchange is assumed to be dominant, resulting in a fixed spin modulus s (equal to 20 in the case of interest). A perturbation of the form AS z 2 results from spin-orbit coupling and produces an energy barrier As 2 which separates positive and negative values of S z . Spin-phonon interactions are treated by second-order perturbation theory. An upper limit of the pre-exponential factor in the Arrhenius law is obtained, which is consistent with the very large experimental value.

Source: Europhysics Letters (EPL)

DOI: 10.1209/0295-5075/27/2/014

Authors: J Villain, F Hartman-Boutron, R Sessoli, A Rettori

Institutions: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Grenoble, University of Florence

Language: English

Topic: Magnetism in coordination complexes

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W1973990675

FWCI: 10.95

Cites: 11

Cited by: 271

Related to: 10