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Electronic structur...
Electronic structure of a Mn-12 molecular magnet : Theory and experiment
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Boukhvalov, D. W. (author)
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Al-Saqer, M. (author)
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Kurmaev, E. Z. (author)
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Moewes, A. (author)
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Galakhov, V. R. (author)
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Finkelstein, L. D. (author)
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Chiuzbaian, S. (author)
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Neumann, M. (author)
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Dobrovitski, V. V. (author)
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- Katsnelson, Mikhail I. (author)
- Uppsala universitet,Fysiska institutionen
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Lichtenstein, A. I. (author)
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Harmon, B. N. (author)
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Endo, K. (author)
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North, J. M. (author)
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Dalal, N. S. (author)
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(creator_code:org_t)
- 2007
- 2007
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 75:1, s. 014419-
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- We used site-selective and element-specific resonant inelastic x-ray scattering (RIXS) to study the electronic structure and the electron interaction effects in the molecular magnet [Mn12O12(CH3COO)(16)(H2O)(4)]center dot 2CH(3)COOH center dot 4H(2)O, and compared the experimental data with the results of local spin density approximation +U electron structure calculations which include the on-site Coulomb interactions. We found a good agreement between theory and experiment for the Coulomb repulsion parameter U = 4 eV. In particular, the p-d band separation of 1.8 eV has been found from the RIXS spectra, which is in accordance with the calculations. Similarly, the positions of the peaks in the XPS spectra agree with the calculated densities of p and d states. Using the results of the electronic structure calculations, we determined the intramolecular exchange parameters, and used them for diagonalization of the Mn-12 spin Hamiltonian. The calculated exchanges gave the correct ground state with the total spin S = 10.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Boukhvalov, D. W ...
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Al-Saqer, M.
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Kurmaev, E. Z.
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Moewes, A.
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Galakhov, V. R.
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Finkelstein, L. ...
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show more...
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Chiuzbaian, S.
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Neumann, M.
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Dobrovitski, V. ...
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Katsnelson, Mikh ...
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Lichtenstein, A. ...
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Harmon, B. N.
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Endo, K.
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North, J. M.
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Dalal, N. S.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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Physical Review ...
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Uppsala University