| Original Articles |
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Formation of Mixture of A and C Centres in Diamond Synthesized with Fe90Ni10-C-High-Content Additive NaN3 by HPHT |
| LIANG Zhong-Zhu1;JIA Xiao-Peng2;LIANG Jing-Qiu1 |
| 1National Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 1300332National Lab of Superhard Materials, Jilin University, Changchun 130012 |
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| Cite this article: |
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LIANG Zhong-Zhu, JIA Xiao-Peng, LIANG Jing-Qiu 2007 Chin. Phys. Lett. 24 3551-3554 |
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Abstract Very rich nitrogen concentration with the dominant C centres and some A centres are found in diamonds grown from a Fe90Ni10-C-high-content NaN3 additive system. The concentrations of C centres rapidly increase with increasing content of NaN3 additive, while the concentrations of A centres increase slowly. The total nitrogen concentration tends to increase rapidly
with increasing content of NaN3 additive when the content of NaN3 is below 0.7wt%. However, the total concentration of nitrogen in the diamonds increases slowly when the content of NaN3 is further increased up to 1.0wt%, and the total nitrogen average concentration are calculated to be around 2230ppm for most of the analysed synthetic diamonds. Furthermore, the nitrogen impurities in different crystal sectors of the diamonds are inhomogeneously distributed. The nitrogen impurities in the diamonds in [111] zones are incorporated more easily than that in [100].
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| Keywords:
81.05.Uw
81.10.Aj
61.72.Ss
85.40.Ry
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Received: 10 April 2007
Published: 03 December 2007
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| PACS: |
81.05.Uw
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81.10.Aj
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(Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
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61.72.Ss
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85.40.Ry
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(Impurity doping, diffusion and ion implantation technology)
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[1] Davies G 1977 Chemistry and Physics of Carbon: TheOptical Properties of Diamond ed Walker PL Jr and Thrower P A (NewYork: Dekker) chap 1 p 51
[2] Wentorf R H 1971 J. Phys. Chem. 75 1833
[3] Strong H M and Chrenko R M 1971 J. Phys. Chem. 75 1838
[4] Kanda H and Yamaoka S 1993 Diamond Relat. Mater. 2 1420
[5] Karen M and Namara M 2003 Appl. Phys. Lett. 831325
[6] Kanda H, Akaishi M and Yamaoka S 1999 Diamond Relat.Mater. 8 1441
[7]Wang X C et al 2005 Chin. Phys. Lett. 22 1800
[8] Collins A T and Lawson S C 1989 Phil. Mag. Lett. 60 117
[9] Borzdov Y, Pal'yanov Y, Kupriyanov I, Gusev V, KhokhryakovA, Sokol A and Efremov A 2002 Diamond Relat. Mater. 111863
[10] Kiflawi I, Kanda H, Fisher D and Lawson S C 1997 Diamond Relat. Mater. 6 1643
[11] Collins A T, Kanda H and Kitawaki H 2000 DiamondRelat. Mater. 9 113
[12] Liang Z Z, Jia X, Zang C Y, Zhu P W, Ma H A and Ren G Z2005 Diamond Relat. Mater. 14 243
[13] Liang Z Z, Jia X, Ma H A, Zang C Y, Zhu P W, Guan Q F andKanda H 2005 Diamond Relat. Mater. 14 1932
[14] Kiflawi I, Mayer A E, Spear P M, Wyk J A, Woods G S 1994 Phil. Mag. B 9 1141 |
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