Pressure-induced isostructural phase transition in α-Ni(OH)2 nanowires
Ma Xin, Li Zhi-Hui, Jing Xiao-Ling, Gu Hong-Kai, Tian Hui, Dong Qing, Wang Peng, Liu Ran, Liu Bo, Li Quan-Jun †, Yao Zhen ‡, Liu Bing-Bing
       

(a) Raman spectra of α-Ni(OH)2 nanowires at high pressure. (b) Pressure dependence of the Raman shift of the lattice modes and SO 4 − 2 vibration. (c) Pressure dependence of the Raman shift of stretch O–H modes.