Research on the g factors of Cr3+ ion in elpasolite crystals Cs2NaYX6 (X=Cl, Br)
기관명 | NDSL |
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저널명 | Optik |
ISSN | 0030-4026, |
ISBN |
저자(한글) | Wu, X.X.,Zheng, W.C. |
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저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2016-01-01 |
초록 | The g factors of Cr 3+ ions at the cubic octahedral Y 3+ sites of elpasolite crystals Cs 2 NaYX 6 (X=Cl, Br) are computed from the high-order perturbation formula founded on the two-mechanism model. In the model, both the contribution from the crystal-field (CF) mechanism in the vastly-applied CF theory and that from the frequently-omitted charge-transfer (CT) mechanism are taken into account. The parameters used in the calculations are acquired from the first-principles calculations and experiment. The calculated results are in rational accordance with the observed values. The negative g-shift Delta;g (=g-g e , where g e ~2.0023, the g value of free electron) for Cs 2 NaYCl 6 :Cr 3+ and the positive g-shift Delta;g for Cs 2 NaYBr 6 :Cr 3+ are therefore explained. The reasonableness of the above calculated formula and the parameters used are confirmed. |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART75729040 |
첨부파일 |
과학기술표준분류 | |
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ICT 기술분류 | |
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주제어 (키워드) | Electron paramagnetic resonance,Crystal- and ligand-field theory,Charge-transfer mechanism,Cr lt,SUP gt,3+ lt,/SUP gt,. Cs lt,SUB gt,2 lt,/SUB gt,NaYX lt,SUB gt,6 lt,/SUB gt,(X=Cl,Br) |