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Trilinear coupling and toroidicity in multiferroics
Andrea Urru, Alessio Filippetti, Jorge Íñiguez-Gonzàlez +1
Magnetoelectric responses are related in general to magnetic multipoles, and in particular the off-diagonal linear response is proportional to the toroidization order parameter. In…
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…
Efficient thermoelectricity in SrNbO with energy-dependent relaxation times
Giulio Casu, Andrea Bosin, Vincenzo Fiorentini
We evaluate theoretically the thermoelectric efficiency of the layered perovskite SrNbO via calculations of the electronic structure and transport coefficients within d…
A three-order-parameter bistable magnetoelectric multiferroic metal
Andrea Urru, Francesco Ricci, Alessio Filippetti +2
Using first-principles calculations we predict that the layered-perovskite metal BiMnO is a ferromagnet, ferroelectric, and ferrotoroid which may realize the long so…
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…