Abstract The specific heats of two nanocrystalline iron samples with different structures have been measured in the temperature range from 2 to 26 K. Experimental results show that the specific heat of nanocrystalline iron samples exhibits abnormal characteristic compared with that of standard bulk iron. The contributions of quantum size effect, surface mode and Einstein mode have been observed in the measurement. Through analyses, it is discovered that the relative density and particle size have a great influence on specific heat of nanocrystalline iron at low temperature.
Received: 15 April 1997
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China.
Cite this article:
TONG XIAO-SHU (童晓树), JIN DUO (金铎), BAI HAI-YANG (白海洋), LUO JIAN-LIN (雒建林), WANG WEN-KUI (王文魁) INFLUENCE OF RELATIVE DENSITY AND PARTICLE SIZE ON THE SPECIFIC HEAT OF NANOCRYSTALLINE IRON 1997 Acta Physica Sinica (Overseas Edition) 6 752
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