Open AccessCALCULATION OF LATTICE HEAT CAPACITY OF LAYERED MATERIAL BASED ON A SIMPLE MODEL
Author(s) -
Nanzhi Zou,
Liang Kai-Feng,
Zhi-Cheng Lin
Publication year - 1993
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.42.1129
Subject(s) - aperiodic graph , superlattice , lattice (music) , materials science , heat capacity , condensed matter physics , simple cubic lattice , thermodynamics , physics , mathematics , combinatorics , statistics , acoustics , monte carlo method
We calculate the lattice heat capacity of layered material based on a simple model with cubic structure and Born potential. It is shown that interface states affect the lattice capacity obviously when the thickness of layer is relatively small (less than several tens of single la-years). With the increasing of thickness of the layer, the lattice capacity decreses and is nearly independent of interface states and the thickness of the layer. We also give a comparison of the lattice capacity of aperiodic superlattice with that of periodic superlattice.