EPR OF Mn2+ IMPURITIES IN CALCITE: A DETAILED STUDY PERTINENT TO MARBLE PROVENANCE DETERMINATION* |
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| Authors: | H. WEIHE S. PILIGKOS A.‐L. BARRA I. LAURSEN O. JOHNSEN |
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| Affiliation: | 1. Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK‐2100 Copenhagen, Denmark;2. Grenoble High Magnetic Field Laboratory, LCMI‐CNRS, F‐38042 Grenoble, Cedex 9, France;3. Quantum Protein Centre, Technical University of Denmark, Building 309, DK‐2800 Lyngby, Denmark;4. 4Geological Museum, University of Copenhagen, ?ster Voldgade 5‐7, DK‐1350 Copenhagen, Denmark |
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| Abstract: | We demonstrate that the electron paramagnetic resonance spectrum of Mn2+ impurities in calcite, and therefore also in marble, may be accurately reproduced by a traditional spin Hamiltonian formalism. The success of such a treatment, however, very much depends on the spin Hamiltonian parameters having the correct signs as well as magnitudes. We present data that determine the sign of the axial anisotropy parameter and thereby facilitate future quantum mechanical characterizations of marble electron paramagnetic resonance spectra that supplement provenance determination. |
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| Keywords: | MARBLE CALCITE EPR PROVENANCE SIMULATION |
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