Glass-like thermal conductivity in SrTiO3 thermoelectrics induced by A-site vacancies

Abstract

The introduction of A-site vacancies in SrTiO3 results in a glass-like thermal conductivity while Nb substituted samples maintains good electrical conductivity. This unexpected result brings SrTiO3 one step closer to being a high-performing phonon-glass electron-crystal thermoelectric material.

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