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Atomistic origin and temperature dependence of surface energetics: an extended broken bond rule
Sun Changqing * #
Nanyang Technological University
*Correspondence author
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Funding: none
Opened online:22 August 2006
Accepted by: none
Citation: Sun Changqing.Atomistic origin and temperature dependence of surface energetics: an extended broken bond rule[OL]. [22 August 2006] http://en.paper.edu.cn/en_releasepaper/content/7992
 
 
Two complementary terms are suggested essential for surface energetics and its responsibility for surface processes. One is the energy density gain per unit volume in surface skin and the other is the cohesive energy remain per discrete atom upon surface formation. The former governs surface mechanics and derivatives yet the latter dominates chemical reactivity and thermal and structural stability of the surface. The shortened and strengthened bonds between the under-coordinated atoms dictate these identities that depend nonlinearly upon the temperature of testing at low temperature regime. Reproduction of measurements has led to information about single bond energy and volume energy density in the bulk.
Keywords:surface energy
 
 
 

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