Suppressed electronic contribution in thermal conductivity of Ge₂Sb₂Se₄Te.

ABSTRACT: Integrated nanophotonics is an emerging research direction that has attracted great interests for technologies ranging from classical to quantum computing. One of the key-components in the development of nanophotonic circuits is the phase-change unit that undergoes a solid-state phase transformation upon thermal excitation. The quaternary alloy, Ge₂Sb₂Se₄Te, is one of the most promising material candidates for application in photonic circuits due to its broadband transparency and large optical contrast in the infrared spectrum. Here, we investigate the thermal properties of Ge₂Sb₂Se₄Te and show that upon substituting tellurium with selenium, the thermal transport transitions from an electron dominated to a phonon dominated r

SUBMITTER: Aryana K 

PROVIDER: S-EPMC8664948 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature