EPR STUDY OF CR3+ DOPING CENTERS IN MG2SIO 4: CR,LI CRYSTALS AND A COMPUTER STRUCTURE SIMULATION
| dc.contributor.author | Mineeva R.M. | |
| dc.contributor.author | Kamozin P.N. | |
| dc.contributor.author | Dudnikova V.B. | |
| dc.contributor.author | Urusov V.S. | |
| dc.contributor.author | Gaister A.V. | |
| dc.contributor.author | Zharikov E.V. | |
| dc.date.accessioned | 2022-01-16T05:05:33Z | |
| dc.date.available | 2022-01-16T05:05:33Z | |
| dc.date.issued | 2003 | |
| dc.description.abstract | Powdered samples of Mg2SiO4: Cr and Mg 2SiO4: Cr,Li crystals have been studied using EPR spectroscopy. In chromium-doped forsterite crystals, Cr M31+ and Cr M32+ octahedral centers and tetrahedral Cr4+ centers have been found (all of these centers have been described previously). In chromium- and lithium-codoped forsterite crystals, two previously unknown centers have been found in addition to the CrM31+ and CrM32+ centers. These newly discovered centers have EPR parameters similar to those in lithium-free crystals. The EPR parameters of Cr3+ centers in Mg2SiO4 : Cr, Mg 2SiO4 : Cr, Li, and Mg2SiO 4 : Cr,Al crystals have been analyzed. A computer structure simulation has shown that new centers, which are the chromium-lithium associations CrM31+ -LiM+1 and Cr M32+ -LiM+1, exist in Mg2SiO4 : Cr,Li crystals along with the CrM31+ and CrM32+ centers. | |
| dc.identifier | https://www.elibrary.ru/item.asp?id=13444119 | |
| dc.identifier.citation | Geochemistry International, 2003, 41, 2, 182-186 | |
| dc.identifier.issn | 0016-7029 | |
| dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/34351 | |
| dc.title | EPR STUDY OF CR3+ DOPING CENTERS IN MG2SIO 4: CR,LI CRYSTALS AND A COMPUTER STRUCTURE SIMULATION | |
| dc.type | Статья |