28 citations · 77 across the 6 of their papers we have counts for
6 papers
A pre-time-zero spatiotemporal microscopy technique for the ultrasensitive determination of the thermal diffusivity of thin films
Sebin Varghese, Jake Dudley Mehew, Alexander Block +8
Diffusion is one of the most ubiquitous transport phenomena in nature. Experimentally, it can be tracked by following point spreading in space and time. Here, we introduce a spatio…
Giant thermoelectric figure of merit in multivalley high-complexity-factor LaSO
Roberta Farris, Francesco Ricci, Giulio Casu +4
We report a giant thermoelectric figure of merit (up to 6 at 1100 K) in -doped lanthanum oxysulphate LaSO. Thermoelectric coefficients are computed from ab initio bands wit…
Unraveling heat transport and dissipation in suspended MoSe crystals from bulk to monolayer
D. Saleta Reig, S. Varghese, R. Farris +14
Understanding thermal transport in layered transition metal dichalcogenide (TMD) crystals is crucial for a myriad of applications exploiting these materials. Despite significant ef…
High thermoelectric figure of merit and thermopower in layered perovskite oxides
Vincenzo Fiorentini, Roberta Farris, Edoardo Argiolas +1
We predict high thermoelectric efficiency in the layered perovskite LaTiO, based on calculations (mostly ab-initio) of the electronic structure, transport coefficients,…
Theory of thermoelectricity in MgSb with an energy- and temperature-dependent relaxation time
Roberta Farris, Maria Barbara Maccioni, Alessio Filippetti +1
We study the electronic transport coefficients and the thermoelectric figure of merit ZT in -doped MgSb based on density-functional electronic structure and Bloch-Boltzm…
Ab initio thermal conductivity of thermoelectric MgSb: evidence for dominant extrinsic effects
Maria Barbara Maccioni, Roberta Farris, Vincenzo Fiorentini
The lattice thermal conductivity of the candidate thermoelectric material MgSb is studied from first principles, with the inclusion of anharmonic, isotope, and boundary sca…