Physical of Materials: Phonon Localization via Defect Engineering in Low-Dimensional Boron Nitride
Abstract
Heat conduction in non-metals occurs via propagation of waves of lattice vibrations energy, whose quanta are called phonons. Because phonons undergo several types of de-phasing scattering, it has been difficult to use phase-coherent interactions for controlling heat conduction, thereby relying largely on manipulating phonon diffusion to minimize heat propagation. Phase-coherent interactions across the whole blackbody spectrum of phonons could presumably exhibit Anderson location, but this has never been experimentally observed. The goal of this high-risk high-reward project is to explore Anderson localization of broadband phonons in 1-D and 2-D boron nitride (BN), which could potentially offer the opportunity to create ultralow thermal conductance via defect engineering in materials
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 2020
- Accession Number
- AD1137317
Entities
People
- Arun Majumdar
Organizations
- Stanford University