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    • Dynamic disorder, phonon lifetimes, and the assignment of modes to the vibrational spectra of methylammonium lead halide perovskites 

      Leguy, Aurélien M. A.; Goñi, Alejandro R.; Frost, Jarvist M.; Skelton, Jonathan; Brivio, Federico; Rodríguez-Martínez, Xabier; Weber, Oliver J.; Pallipurath, Anuradha; Alonso, M. Isabel; Campoy-Quiles, Mariano; Weller, Mark T.; Nelson, Jenny; Walsh, Aron; Barnes, Piers R. F. (Royal Society of Chemistry (RSC), 2016-01-01)
      We present Raman and terahertz absorbance spectra of methylammonium lead halide single crystals (MAPbX(3), X = I, Br, Cl) at temperatures between 80 and 370 K. These results show good agreement with density-functional-theory ...