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Updated: Jul 12, 2025
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Size effect on Debye temperature of metal crystals
Xiaobao Jiang1, Hongchao Sheng1, Beibei Xiao2
1Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China. jiangxb@just.edu.cn.
Abstract:
Understanding the physical origin of materials exhibiting different properties at the mesoscale is of great significance for the design and fabrication of multifunctional quantum devices. In this work, we proposed a simple model without any adjustable parameters to describe the size (D) dependence of Debye temperature ΘD(D) of metallic nanocrystals. ΘD(D) drops with the decrease of D, which is verified by relevant experimental and simulation results. In addition, we found that the difference in the size dependence of ΘD(D) of different metal elements is determined by the ratio of the solid/liquid interface energy γsl and surface stress f, and the smaller the D of the nanocrystals, the greater the influence of γsl/f on ΘD(D)/ΘD.
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