78 citations · 294 across the 13 of their papers we have counts for
12 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…
Influence of local symmetry on lattice dynamics coupled to topological surface states
Jonathan A. Sobota, Samuel W. Teitelbaum, Yijing Huang +18
We investigate coupled electron-lattice dynamics in the topological insulator Bi2Te3 with time-resolved photoemission and time-resolved x-ray diffraction. It is well established th…
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…
Electron-phonon coupling and electronic thermoelectric properties of n-type PbTe driven near the soft-mode phase transition via lattice expansion
Jiang Cao, Đorđe Dangić, José D. Querales-Flores +2
IV-VI materials are some of the most efficient bulk thermoelectric materials due to their proximity to soft-mode phase transitions, which leads to low lattice thermal conductivity.…
Electron-phonon scattering and thermoelectric transport in -type PbTe from first principles
Ransell D'Souza, Jiang Cao, José D. Querales-Flores +2
We present a first principles based model of electron-phonon scattering mechanisms and thermoelectric transport at the L and valleys in <200b>-type PbTe, accounting for thei…
Towards temperature-induced topological phase transition in SnTe: A first principles study
José D. Querales-Flores, Pablo Aguado-Puente, Đorđe Dangić +6
The temperature renormalization of the bulk band structure of a topological crystalline insulator, SnTe, is calculated using first principles methods. We explicitly include the eff…
Thermally induced band gap increase and high thermoelectric figure of merit of n-type PbTe
Jiang Cao, José D. Querales-Flores, Stephen Fahy +1
Unlike in many other semiconductors, the band gap of PbTe increases considerably with temperature. We compute the thermoelectric transport properties of n-type PbTe from first prin…
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…
Dominant electron-phonon scattering mechanisms in -type PbTe from first principles
Jiang Cao, Jose D. Querales-Flores, Aoife R. Murphy +2
We present an \emph{ab-initio} study that identifies the main electron-phonon scattering channels in -type PbTe. We develop an electronic transport model based on the Boltzmann…
Temperature effects on the electronic band structure of PbTe from first principles
José D. Querales-Flores, Jiang Cao, Stephen Fahy +1
We report a fully {\it ab-initio} calculation of the temperature dependence of the electronic band structure of PbTe. We address two main features relevant for the thermoelectric f…
Effect of N interstitial complexes on the electronic properties of GaAsN alloys from first principles
J. D. Querales-Flores, C. I. Ventura, J. D. Fuhr
Several approaches have been used to investigate the impact of Nitrogen (N) on the electronic structure of GaAsN alloys, however, there is no agreement between theory…
Normal state electronic properties of LaOFBiS superconductors
J. D. Querales Flores, C. I. Ventura, R. Citro +1
A good description of the electronic structure of BiS-based superconductors is essential to understand their phase diagram, normal state and superconducting properties. To de…