Behavior of Raman modes in InPBi alloys under hydrostatic pressure
Authors: Zheng, CC; Wang, XH; Ning, JQ; Ding, K; Sun, BQ; Wang, SM; Xu, SJ
Volume: 9 Issue: 3 Published: MAR 2019 Language: English Document type: Article
Raman spectra of InPBi alloys with bismuth amount 0.3%-2.0% were measured under hydrostatic pressure in diamond anvil cell up to similar to 4 GPa at room temperature. Two bismuth related Raman modes were identified and their evolutions under pressure were studied. The linear pressure coefficients of these two modes are determined to be 1.292 and 2.169 cm(-1)/GPa, respectively. The different behaviors of these two modes under pressure suggest that they may have distinct origins. InP related Raman modes were also investigated including two InP related modes caused by Bi doping. (C) 2019 Author(s).