Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries

Schnalle R, Schnack J (2010)
International Reviews in Physical Chemistry 29(3): 403-452.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
The determination of the energy spectra of small spin systems as for instance given by magnetic molecules is a demanding numerical problem. In this work we review numerical approaches to diagonalize the Heisenberg Hamiltonian that employ symmetries; in particular we focus on the spin-rotational symmetry SU(2) in combination with point-group symmetries. With these methods one is able to block-diagonalize the Hamiltonian and thus to treat spin systems of unprecedented size. Thermodynamic observables such as the magnetization are then easily evaluated. In addition it provides a spectroscopic labeling by irreducible representations that can be related to selection rules which can be helpful when interpreting transitions induced by electron paramagnetic resonance, nuclear magnetic resonance or inelastic neutron scattering. It is our aim to provide the reader with detailed knowledge on how to set up such a diagonalization scheme.
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Zeitschriftentitel
International Reviews in Physical Chemistry
Band
29
Zeitschriftennummer
3
Seite
403-452
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Schnalle R, Schnack J. Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries. International Reviews in Physical Chemistry. 2010;29(3):403-452.
Schnalle, R., & Schnack, J. (2010). Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries. International Reviews in Physical Chemistry, 29(3), 403-452. doi:10.1080/0144235X.2010.485755
Schnalle, R., and Schnack, J. (2010). Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries. International Reviews in Physical Chemistry 29, 403-452.
Schnalle, R., & Schnack, J., 2010. Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries. International Reviews in Physical Chemistry, 29(3), p 403-452.
R. Schnalle and J. Schnack, “Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries”, International Reviews in Physical Chemistry, vol. 29, 2010, pp. 403-452.
Schnalle, R., Schnack, J.: Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries. International Reviews in Physical Chemistry. 29, 403-452 (2010).
Schnalle, Roman, and Schnack, Jürgen. “Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries”. International Reviews in Physical Chemistry 29.3 (2010): 403-452.

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arXiv: 1003.1909

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