Quantum
Matter

Phonon drag thermal Hall effect in metallic strontium titanate

Benoit Fauque — 2020-12-16T14:01:19Z

SrTiO3, a quantum paralectric, displays a detectable phonon thermal Hall effect (THE).Here, we show that the amplitude of the THE is extremely sensitive to stoichiometry. Itdrastically decreases upon substitution of a tiny fraction of Sr atoms with Ca, which sta-bilizes the ferroelectric order. It drastically increases by an even lower density of oxygenvacancies, which turn the system to a dilute metal. The enhancement in the metallic stateexceeds by far the sum of the electronic and the (…)

- Last Publications

How to visit us ?

Benoit Fauque — 2010-08-20T08:01:46Z

Adress : LABORATOIRE DE PHYSIQUE ET D'ETUDE DES MATERIAUX - UMR 8213 ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES (E.S.P.C.I.) 10 Rue Vauquelin, Bat. C 75231 PARIS CEDEX 05 Tél : 01 40 79 45 94 Fax : 01 40 79 47 44 Web : http://www.lpem.espci.fr
A map [http://maps.google.fr/maps/place?cid=9168254231179522673&q=ECOLE+SUPERIEURE+DE+PHYSIQUE+ET+DE+CHIMIE+INDUSTRIELLES,+10+Rue+Vauquelin,+Bat.+C,+75231+PARIS+CEDEX+05&hl=fr&cd=1&ei=sNPiS8naMJHBjAe89tHhAw&dtab=0&sll=48.841266,2.34769

- Home

Welcome

Benoit Fauque — 2010-08-18T13:45:23Z

Welcome to the Quantum Matter group of the Laboratoire de Physique et d'Étude des Matériaux (LPEM) at the Ecole Supérieur de Physique et de Chimie Industrielles (ESPCI) and at Institue de Physique du Collège de France. Our main axis of research is to probe the wide variety of the electronic ground states of the quantum matter by studying transport of charge and entropy. Please check our activities though this website and feel free to contact us for more information.
How to visit us ? (…)

- Home / Accueil-edito

Strong correlation and low carrier density in Fe1+yTe0.6Se0.4 as seen from its thermoelectric response

Benoit Fauque — 2010-08-18T13:26:28Z

Alexandre Pourret, Liam Malone, Arlei B. Antunes, C. S. Yadav, P. L. Paulose, Benoît Fauqué, and Kamran Behnia
We present a study of the Seebeck and Nernst coefficients of Fe1+yTe1-xSex extended up to 28 T. The large magnitude of the Seebeck coefficient in the optimally doped sample tracks a remarkably low normalized Fermi temperature, which like other correlated superconductors, is only one order of magnitude larger than Tc. We combine our data with other experimentally measured (…)