Comment on 'Increase in specific heat and possible hindered rotation of interstitialC_2moleculesin neutron-irradiated graphite'

C. D. Latham; G. L. Haffenden; M. I. HeggieI. Suarez-MartinezC. P. Ewels

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Comment on 'Increase in specific heat and possible hindered rotation of interstitialC_2moleculesin neutron-irradiated graphite'

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Iwata and Watanabe's model for the observed low-temperature specific heat of neutron-irradiated graphite Iwata and M. Watanabe, Phys. Rev. B 81, 014105 (2010) assumes that self-interstitial atoms exist asclusters of nearly free C_2 molecules. We suggest that their hypothesis is not supported by other experimentsand theory, including our own calculations. Not only is it inconsistent with the long-known kinetics of inter-stitial prismatic dislocation loop formation, density-functional theory shows that the di-interstitial is covalentlybonded to the host crystal. In such calculations no prior assumptions are made about the nature of the bonding,covalent or otherwise.

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来源
《Physical review, B. Condensed matter and materials physics》 |2010年第5期|056101:1-056101:3|共3页
作者
C. D. Latham; G. L. Haffenden; M. I. HeggieI. Suarez-MartinezC. P. Ewels;
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作者单位

Department of Chemistry and Biochemistry, University of Sussex, Fahner, Brighton BN1 9QJ, United Kingdom;

Nanochemistry Research Institute, Curtin University of Technology, GPO Box U1987, Perth, Western Australia 6845, Australia;

Institute des Materiaux Jean Rouxel, CNRS-Universite de Nantes, 2 rue de la Houssiniere, BP 32229, F-44322 Nantes, France;

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正文语种英语
中图分类物理学;
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Increase; rotation; specific;

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1. The influence of hindered molecular rotation on the dielectric constants of alcohols: A comment upon a little recognized error of Oster and Kirkwood [J] . Arnold V. Lesikar journal of chemical physics . 1978,第3期

机译：The influence of hindered molecular rotation on the dielectric constants of alcohols: A comment upon a little recognized error of Oster and Kirkwood
2. Hindered Rotation III. The Qualitative Nature of the Interactions HIndering Internal Rotation [J] . A. Langseth, H. J. Bernstein, B. Bak journal of chemical physics . 1940,第5期

机译：Hindered Rotation III. The Qualitative Nature of the Interactions HIndering Internal Rotation
3. Hindered Rotation II. The Hindered Rotation About the Csngbnd;C Single Bond in Tetrachloroethane [J] . A. Langseth, H. J. Bernstein journal of chemical physics . 1940,第5期

机译：Hindered Rotation II. The Hindered Rotation About the Csngbnd;C Single Bond in Tetrachloroethane
4. The specific heat of composite material at low temperatures. [O] . 1979

机译：The specific heat of composite material at low temperatures.
5. Lambda-Dublett Spezifische Untersuchung von Rotations- und Feinstrukturuebergaengen des OH bei Stoessen MIT H2 (Lambda-Doublet-Specific Investigation of Rotational and Fine-Structure Transitions of OH in Collisions with H2) [R] . Luelf, H. 1986

机译：Lambda-Dublett spezifische Untersuchung von Rotations- und Feinstrukturuebergaengen des OH bei stoessen mIT H2（Lambda-Doublet-specific调查OH与H2碰撞时的旋转和精细结构转变）

Comment on 'Increase in specific heat and possible hindered rotation of interstitialC_2moleculesin neutron-irradiated graphite'

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