The coupled interactions among the fundamental carriers of charge, heat, and
electromagnetic fields at interfaces and boundaries give rise to energetic processes that …

Abstract 2D transition metal dichalcogenides (TMDs) exhibit remarkable properties that are
strongly influenced by their atomic structures, as well as by various types of defects and …

Correlation of lattice vibrational properties with local atomic configurations in materials is
essential for elucidating functionalities that involve phonon transport in solids. Recent …

Grain boundaries (GBs) are a prolific microstructural feature that dominates the functionality
of a wide class of materials. The functionality at a GB results from the unique atomic …

Incoherent interfaces with large mismatches usually exhibit very weak interfacial interactions
so that they rarely generate intriguing interfacial properties. Here we demonstrate …

The remarkable increase in superconducting transition temperature (T c) observed at the
interface of one-unit-cell FeSe films on SrTiO3 substrates (1 uc FeSe/STO) has attracted …

Unexpected, yet useful functionalities emerge when two or more materials merge
coherently. Artificial oxide superlattices realize atomic and crystal structures that are not …

Nanoscale defects like grain boundaries (GBs) would introduce local phonon modes and
affect the bulk materials' thermal, electrical, optical, and mechanical properties. It is highly …

Interface phonon modes that are generated by several atomic layers at the heterointerface
play a major role in the interface thermal conductance for nanoscale high-power devices …

Phonon engineering is crucial for thermal management in GaN-based power devices, where
phonon-defect interactions limit performance. However, detecting nanoscale phonon …