Issue 20, 2010

Simple models and powerful tools for seeking a comprehensive understanding of the magnetic properties of molecular magnets

Abstract

The Heisenberg model provides a simple but powerful theoretical platform for modelling magnetic molecules. In this article, we demonstrate that—despite its simplicity—an isotropic Heisenberg model successfully provides a comprehensive description of the magnetic properties of the {Fe8}-cubane and the {Cr12Cu2} magnetic molecules. However, in order to achieve this success, it is necessary to employ a variety of sophisticated experimental and theoretical techniques. These include the use of pulsed-field measurements to observe a high-field (41 T) ground-state level crossing in the {Fe8}-cubane system, and tunnel-diode oscillator measurements, which we use to observe excited-state level crossings in the {Cr12Cu2} ring. For these two systems, the theoretical modelling was carried out using matrix diagonalization and quantum Monte Carlo calculations, respectively.

Graphical abstract: Simple models and powerful tools for seeking a comprehensive understanding of the magnetic properties of molecular magnets

Article information

Article type
Perspective
Submitted
07 Jan 2010
Accepted
25 Feb 2010
First published
23 Mar 2010

Dalton Trans., 2010,39, 4687-4692

Simple models and powerful tools for seeking a comprehensive understanding of the magnetic properties of molecular magnets

L. Engelhardt and M. Luban, Dalton Trans., 2010, 39, 4687 DOI: 10.1039/C000356E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements