BROAD DISTRIBUTION OF CRYSTAL-FIELD ENVIRONMENTS FOR ND3+ IN CALCITE
| dc.contributor.author | Withers S.H. | |
| dc.contributor.author | Peale R.E. | |
| dc.contributor.author | Schulte A.F. | |
| dc.contributor.author | Braunstein G. | |
| dc.contributor.author | Beck K.M. | |
| dc.contributor.author | Hess W.P. | |
| dc.contributor.author | Reeder R.J. | |
| dc.date.accessioned | 2022-02-21T00:48:18Z | |
| dc.date.available | 2022-02-21T00:48:18Z | |
| dc.date.issued | 2003 | |
| dc.description.abstract | Calcite micro-crystals were grown from solution with single crystal dimensions up to 3 mm and doped up to ~0.1% with Nd3+ ions. Phase purity was verified by powder x-ray diffraction. The concentration of Nd3+ was measured by energy-dispersive spectrometry and Rutherford backscattering spectrometry. Micro x-ray fluorescence mapping of the calcite grains indicates uniform Nd distribution in as-grown crystal grains. X-ray absorption fine structure indicates that Nd3+ is substituted for Ca2+ with local lattice distortion. Temperature dependent near-infrared spectroscopy of Nd3+ impurities in calcite reveals large inhomogeneous line widths. These results suggest a broad distribution of crystal-field environments for Nd3+ as a result of charge compensation and inhomogeneous lattice strain. | |
| dc.identifier | https://elibrary.ru/item.asp?id=14513838 | |
| dc.identifier.citation | Physics and Chemistry of Minerals, 2003, 30, 7, 440-448 | |
| dc.identifier.issn | 0342-1791 | |
| dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/35600 | |
| dc.subject | Calcium carbonate | |
| dc.subject | Calcite | |
| dc.subject | Neodymium | |
| dc.subject | Carbonate minerals | |
| dc.subject | Nuclear waste | |
| dc.title | BROAD DISTRIBUTION OF CRYSTAL-FIELD ENVIRONMENTS FOR ND3+ IN CALCITE | |
| dc.type | Статья |
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