MAGNETISM OF SMALL TRANSITION-METAL CLUSTERS AND EFFECTS OF ISOMERIZATION

Peter Borrmann, Bernd Diekmann, Eberhard R. Hilf and David Tománek
Additional contact information
Peter Borrmann: Department of Physics, Carl v. Ossietzky University Oldenburg, D-26111 Oldenburg, Germany
Bernd Diekmann: Department of Physics, Carl v. Ossietzky University Oldenburg, D-26111 Oldenburg, Germany
Eberhard R. Hilf: Department of Physics, Carl v. Ossietzky University Oldenburg, D-26111 Oldenburg, Germany
David Tománek: Department of Physics and Astronomy, and Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824–1116, USA

Surface Review and Letters (SRL), 1996, vol. 03, issue 01, 463-466

Abstract: We investigate the magnetic properties of small transition-metal clusters using a simple statistical model, which requires some input data fromab-initiospin-density-functional calculations. In our study, we consider a thermodynamically equilibrated ensemble of clusters with different structures, spin multiplicities, and ground-state energies. We calculate the physical properties of this system by weighting the individual configurations according to the Boltzmann statistics. We find that presence of isomers with very similar ground-state energies, yet very different magnetic properties, gives rise to a rich magnetic behavior of the system which differs significantly from what would be expected for single configurations. We apply the present model to determine the magnetic susceptibility of a cluster ensemble of Langevin paramagnets. Our results show that some of the anomalies in the magnetic behavior of transition-metal clusters might be understood in the framework of our model which is, of course, limited by the extremely high computational effort needed to obtain the input data.

Date: 1996
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X96000838
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x96000838

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X96000838

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().