Specific Heat of Rhombohedral Polymeric C60 in Temperature Range 300-2K

CUI Guang-Lei; GU Min; YU Yao; XU Xi-Bin; WANG Li-Hang; CHEN Xiao; FENG Duan; TANG Tong-Bor

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Specific Heat of Rhombohedral Polymeric C60 in Temperature Range 300-2K

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Polymerization of C60 is realized under high temperature and high pressure.X-ray diffraction reveals a rhombohedral lattice structure in the product,and solid-state 13C nuclear magnetic resonance spectroscopy confirms the formation of sp3 bonds between C60 molecules.Specific heat is then measured over the temperature range of 300-2K.It is found that its specific heat values are significantly less than those in fullerite within the region of 80-2K,and this huge reduction is attributed to the suppression of intermolecular librational modes in polymerized C60.An excellent fit to the experimental data over the entre temperature range js provided by a model,which needs to include only three-dimensional and two-dimensional translational modes in various contributions at different temperatures.

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《中国物理快报：英文版》 |2008年第2期|658-660|共3页
作者
CUI Guang-Lei; GU Min; YU Yao; XU Xi-Bin; WANG Li-Hang; CHEN Xiao; FENG Duan; TANG Tong-Bor;
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作者单位

National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093;

National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093;

National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093;

National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093;

National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093;

National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093;

National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093;

Department of Physics,Hong Kong Baptist University,Kowloon,Hong Kong;

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中图分类物理学;
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Specific Heat of Rhombohedral Polymeric C60 in Temperature Range 300-2K

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