The local vibration mode induced by an impurity in a diatomic linear chain with on-site potential and the Secondary neighbor interactions

LV Kui1，TONG Guo-ping2

doi:10.16854 /j.cnki.1000-0712.2017.11.004

2017 , Vol. 36 >Issue 11: 15 - 17

DOI: https://doi.org/10.16854 /j.cnki.1000-0712.2017.11.004

The local vibration mode induced by an impurity in a diatomic linear chain with on-site potential and the Secondary neighbor interactions

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1. Department of Physics，Shangrao Normal University，Shangrao， Jiangxi 334001，China; 2. College of Mathematics; Physics and Information Engineering，Zhejiang Normal University，Jinhua，Zhejiang 321004，China

Received date: 2017-04-11

Revised date: 2017-06-10

Online published: 2017-11-24

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Abstract

Considering the Secondary neighbor interactions between the atoms in a diatomic linear chain with on-site potential, the lattice vibration equation of the diatomic chain with an impurity are solved, and the basic feature of the effect of on-site potential and the Secondary neighbor interaction on the symmetric local vibration are given.

Key words： impurity; Secondary neighbor interactions; on-site potential; local vibration

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LV Kui1，TONG Guo-ping2 . The local vibration mode induced by an impurity in a diatomic linear chain with on-site potential and the Secondary neighbor interactions[J]. College Physics, 2017 , 36(11) : 15 -17 . DOI: 10.16854 /j.cnki.1000-0712.2017.11.004

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