Phonon Interference Effects in GaAs-GaP Superlattice Nanowires.

ABSTRACT: Fine-tuning the functional properties of nanomaterials is crucial for technological applications. Superlattices, characterized by periodic repetitions of two or more materials in different dimensions, have emerged as promising areas of investigation. We present a study of the phonon interference effect on thermal transport in GaAs-GaP superlattice nanowires with sharp interfaces between the GaAs and GaP layers, as confirmed by high-resolution transmission electron microscopy. We performed thermal conductivity measurements using the so-called thermal bridge method on superlattice nanowires with a period varying from 4.8 to 23.3 nm. The measurements showed a minimum of the thermal conductivity as a function of superlattice period up to room temperature that we interpreted as an indication of

SUBMITTER: Arya C 

PROVIDER: S-EPMC12752693 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature