Optical absorption of Co2+ in MgIn2S4, CdIn2S4, and HgIn2S4 spinel crystals

Lee SJ.; Kim JE.; Park HY.

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Optical absorption of Co2+ in MgIn2S4, CdIn2S4, and HgIn2S4 spinel crystals

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The optical absorption spectra of cobalt-doped MgIn2S4, CdIn2S4, and HgIn2S4 single crystals grown by a chemical transport reaction were investigated at 7 K. The values of Dq and B calculated from the observed spectra show that the d electrons are more delocalized in the order of MgIn2S4, CdIn2S4, and HgIn2S4. Because this order corresponds to the decreasing order of the electronegativity differences between the metal and sulfur atoms of the host crystals, we conclude that as the metal-sulfur bonds in the host crystals are more covalent, the d electrons of the cobalt impurities are more spread out and the cobalt-sulfur bonds are also more covalent. References: 17

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《Journal of Materials Research》 |2003年第3期|733-736|共4页
作者
Lee SJ.; Kim JE.; Park HY.;
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作者单位

Wyatt Technology Corporation 6300 Hollister Avenue, Santa Barbara, CA 93117-3253;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Single-crystals;

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3. Crystal Chemistry of CdIn2S4, MgIn2S4/ and MnIn2S4 Thiospinels under High Pressure [J] . D. Santamaria-Perez, M. Amboage, F.J. Manjon The journal of physical chemistry, C. Nanomaterials and interfaces . 2012,第26期

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5. DT Fusion Neutron Irradiation of BNL--LASL Superconductor Wires, LASL YAG, Al sub 2 O sub 3 and Spinel, LASL-IIT MgO, YAG, Al sub 2 O sub 3 and Spinel, and NRL GeO sub 2 Crystals, December 28, 1977 [R] . MacLean, S. C. 1978

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Optical absorption of Co2+ in MgIn2S4, CdIn2S4, and HgIn2S4 spinel crystals

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