Observation of strong higher-order lattice anharmonicity in Raman and infrared spectra
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DOI: 10.1103/physrevb.101.161202
Abstract: It has been well-known that Raman and infrared linewidths are associated with third-order lattice anharmonicity. Here, the authors go further and establish by means of first-principles calculations and Raman measurements that the previously neglected fourth-order… read more here.
Keywords: lattice anharmonicity; order; order lattice; anharmonicity ... See more keywords