高压下AlN纳米带的Raman光谱特性

Journal of Jilin University Science Edition

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Insitu High Pressure Raman Spectroscopy of AlN Nanobelt

LI Xuefei¹, KONG Lingnan^1,2, SHEN Longhai³, GAO Ming¹,HU Tingjing¹, LI Ming¹, YANG Jinghai¹

1. College of Physics, Jilin Normal University, Siping 136000, Jilin Province, China;2. College of Materials Science and Engineering, Jilin University, Changchun 130012, China;3. School of Science, Shenyang Ligong University, Shenyang 110159, China

Received:2013-01-26 Online:2014-01-26 Published:2014-03-05
Contact: YANG Jinghai E-mail:jhyang4566@gmail.com

Abstract

Abstract:

High pressure phase transition of AlN nanobelts was investigated in a range of 0—29.83 GPa by means of insitu Raman spectrum method. According to the Raman scattering results, a pressure\|induced wurtzite to rocksalt phase transition starts at 17.34 GPa and ends at 21.28 GPa. The Raman scattering of rocksalt AlN was assigned to the disorderly phonon scattering of rocksalt structure. In addition, the pressure dependence of vibration modes, the pressure coefficients and Grüneisen parameters were carefully calculated.

Key words: phase transition, diamond anvil cell, high pressure, Grüneisen parameters

CLC Number:

O521.23

LI Xuefei, KONG Lingnan, SHEN Longhai, GAO Ming,HU Tingjing, LI Ming, YANG Jinghai. Insitu High Pressure Raman Spectroscopy of AlN Nanobelt[J].Journal of Jilin University Science Edition, 2014, 52(01): 117-120.

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Insitu High Pressure Raman Spectroscopy of AlN Nanobelt

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