Since the end of the cold war, macroscopic amounts of separated stable isotopes of most
elements have been available “off the shelf” at affordable prices. Using these materials …

Anharmonic lattice vibrations play pivotal roles in the thermal dynamics in condense matters
and affect how the atoms interact and conduct heat. An in-depth understanding of the …

Van der Waals single-layer materials are characterized by an inherent extremely low
bending rigidity and therefore are prone to nanoscale structural modifications due to …

This paper gives a brief review of the effect of temperature and pressure on Raman spectra.
Anharmonicity, defined by the cubic, quartic and higher terms in the potential expansion, is …

The crystal lattice is never rigid. Due to temperature, external fields or pressure, the nuclei
vibrate, the lattice distorts, and instabilities can induce phase transitions. We review the …

Phonon linewidths can exhibit a large variation when either pressure or isotopic masses are
changed. These effects yield detailed information about the mechanisms responsible for …

In this work we present an ab initio calculation of the Raman linewidth of transverse and
longitudinal phonon in zinc-blende semiconductors GaAs, AlAs, GaP, and InP. We propose …

We demonstrate a method to induce tensile and compressive strain into two-dimensional
transition metal dichalcogenide (TMDC) MoS 2 via the deposition of stressed thin films to …

Under photon excitation, 2D materials experience cascading energy transfer from electrons
to optical phonons (OPs) and acoustic phonons (APs). Despite few modeling works, it …

Pressure (P) derivatives of thermal conductivity (k) and thermal diffusivity (D) are important to
geophysics but are difficult to measure accurately because minerals, being hard and …