Diabolical points in the magnetic spectrum of Fe8 molecules

A. Garg

doi:10.1209/epl/i2000-00277-9

Diabolical points in the magnetic spectrum of Fe₈ molecules

A. Garg^*

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The magnetic molecule Fe₈ has been predicted and observed to have a rich pattern of degeneracies in its spectrum as an external magnetic field is varied. These degeneracies have now been recognized to be diabolical points. This paper analyzes the diabolicity and all essential properties of this system using elementary perturbation theory. A variety of arguments is given to suggest that an earlier semiclassical result for a subset of these points may be exactly true for arbitrary spin.

Original language	English (US)
Pages (from-to)	382-388
Number of pages	7
Journal	Europhysics Letters
Volume	50
Issue number	3
DOIs	https://doi.org/10.1209/epl/i2000-00277-9
State	Published - May 1 2000

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1209/epl/i2000-00277-9

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abstract = "The magnetic molecule Fe8 has been predicted and observed to have a rich pattern of degeneracies in its spectrum as an external magnetic field is varied. These degeneracies have now been recognized to be diabolical points. This paper analyzes the diabolicity and all essential properties of this system using elementary perturbation theory. A variety of arguments is given to suggest that an earlier semiclassical result for a subset of these points may be exactly true for arbitrary spin.",

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AB - The magnetic molecule Fe8 has been predicted and observed to have a rich pattern of degeneracies in its spectrum as an external magnetic field is varied. These degeneracies have now been recognized to be diabolical points. This paper analyzes the diabolicity and all essential properties of this system using elementary perturbation theory. A variety of arguments is given to suggest that an earlier semiclassical result for a subset of these points may be exactly true for arbitrary spin.

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Diabolical points in the magnetic spectrum of Fe₈ molecules

Abstract

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