Phonon stability boundary and deep elastic strain engineering of lattice thermal conductivity.

ABSTRACT: Recent studies have reported the experimental discovery that nanoscale specimens of even a natural material, such as diamond, can be deformed elastically to as much as 10% tensile elastic strain at room temperature without the onset of permanent damage or fracture. Computational work combining ab initio calculations and machine learning (ML) algorithms has further demonstrated that the bandgap of diamond can be altered significantly purely by reversible elastic straining. These findings open up unprecedented possibilities for designing materials and devices with extreme physical properties and performance characteristics for a variety of technological applications. However, a general scientific framework to guide the design of engineering materials through such elastic strain engineering (

SUBMITTER: Shi Z 

PROVIDER: S-EPMC10895250 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature