Study of lattice dynamics of energy-harvesting thermoelectrics based on Mg2Si(1-x)Snx
In order to improve the thermoelectric (TE) performance semiconducting material their thermal energy transport should be minimized. The understanding of vibrational eigenstates, phonons, of the TE materials and their interaction is a fundamental step towards a thorough comprehension of heat transport. We carried out extensive ab initio calculations of phonon properties of bulk and doped Mg2Si solid solutions. Our extensive calculations require now a careful experimental checkup. As a first step our interest is focused on a series of Mg2Si(1-x)Snx specimen. For which the complete phonon spectra and lifetimes have been calculated. We ask for beamtime at the time of flight instruments IN4 and IN6 and for help with the computing of powder averaged spectra.
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PRYTULIAK Anastasiia; BOURGEOIS Julie; CHAPUT Laurent; KOZA Michael Marek; RECOUR Quentin; SCHERRER Hubert and TOBOLA Janusz. (2013). Study of lattice dynamics of energy-harvesting thermoelectrics based on Mg2Si(1-x)Snx. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-01-365
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