1. INTRODUCTION 1.1. Size and Defect Fascinations ZnO is a kind of amazing material with
multiple functions that have been investigated since the 1940s. With and without dopant …

We present a Raman scattering study of optical phonons in hexagonal BN for temperatures
ranging from 80 to 600 K. The experiments were performed on high-quality, single …

Phonons play a pivotal role in the lattice dynamics and thermal transport properties of AlN
epilayers. Revealing the phonon anharmonicity and epilayer-substrate interactions is the …

Hexagonal boron nitride (h-BN) is a layered crystal that is attracting a great deal of attention
as a promising material for nanophotonic applications. The strong optical anisotropy of this …

Raman spectra were measured for palladium oxide (PdO) at temperatures from 298 to 973
K. The first-order scattering B1g and Eg phonon modes show prominent frequency and line …

The lattice dynamical properties of the corundum-like α-phase of Ga 2 O 3 are investigated
by means of Raman scattering experiments and ab-initio calculations. A high-quality, single …

The thermoelectric (TE) performance of p-type ZrCoSb-based half-Heusler (HH) alloys has
been improved tremendously in recent years; however, it remains challenging to find …

Non-equilibrium phonons have been discussed for almost six decades. Here, the nature of
the longitudinal optical mode, particularly in polar materials, is discussed along with its …

Recent advances in the study of thermoelectric materials mainly focus on the developments
or designs of methods to reduce thermal conductivities. The information of phonon scattering …

Phonon-phonon scattering dominates the thermal properties in nonmetallic materials, and it
directly influences device performance in applications. The understanding of the scattering …