48 citations · 305 across the 13 of their papers we have counts for
16 papers
Ultrafast measurements of mode-specific deformation potentials of BiTe and BiSe
Yijing Huang, José D. Querales-Flores, Samuel W. Teitelbaum +24
Quantifying electron-phonon interactions for the surface states of topological materials can provide key insights into surface-state transport, topological superconductivity, and p…
Temperature induced band convergence, intervalley scattering and thermoelectric transport in p-type PbTe
Ransell D'Souza, José D. Querales-Flores, Jiang Cao +2
Achieving high valley degeneracy (i.e. "band convergence") in a material usually results in considerably enhanced thermoelectric properties. However, it is still unclear why this s…
The origin of the lattice thermal conductivity enhancement at the ferroelectric phase transition in GeTe
Đorđe Dangić, Olle Hellman, Stephen Fahy +1
The proximity to structural phase transitions in IV-VI thermoelectric materials is one of the main reasons for their large phonon anharmonicity and intrinsically low lattice therma…
Structural and thermal transport properties of ferroelectric domain walls in GeTe from first principles
Đorđe Dangić, Éamonn D. Murray, Stephen Fahy +1
Ferroelectric domain walls are boundaries between regions with different polarization orientations in a ferroelectric material. Using first principles calculations, we characterize…
Ultrafast relaxation of symmetry-breaking photo-induced atomic forces
Shane M. O'Mahony, Felipe Murphy-Armando, Éamonn D. Murray +3
We present a first-principles method for the calculation of the temperature-dependent relaxation of symmetry-breaking atomic driving forces in photoexcited systems. We calculate th…
Acoustic Deformation Potentials of -Type PbTe from First Principles
Aoife R. Murphy, Felipe Murphy-Armando, Stephen Fahy +1
We calculate the uniaxial and dilatation acoustic deformation potentials, and , of the conduction band L valleys of PbTe from first principles,…