ANTEZZA Mauro
Fonction : EnseignantChercheur
Organisme : Université Montpellier
Professeur (HDR)
Directeur(trice) de thèse de :
JEYAR Y.,
mauro.antezza
umontpellier.fr
Bureau: 31.0, Etg: 2, Bât: 21  Site : Campus Triolet
Administration Nationale: Elu/nommé au comité national CNRS
 Elu/nommé au CS/CSD CNRS ou IRD
 Expert ANR
 Élu au Bureau de l'IUF  Ministère ENESR

Administration Locale: Membre d'un pool d'experts
 Direction/codirection de laboratoire
 Direction d'équipe
 Responsable de formations
 Responsable de diplôme (M2)

Curriculum Vitae: 
Academics : 2021today : Full Professor of Theoretical Physics, University of Montpellier 20102021 : Associate Professor of Theoretical Physics, University of Montpellier 20072010 : Postdoc, École Normale Supérieure  Paris 20062007 : Postdoc, University of Trento 20032006 : PhD (physics), University of Trento 19992003 : Laurea (physics), University of Pavia Collective charges : 2014today : Head and founder, research group RMPQ "Theory of lightmatter and quantum phenomena"  L2C 2020today : Director, Physics axes PEPS "Exciton, Photons and Spin Physics"  L2C 2020today : Codirector, "Nanophysics and Quantum Technologies" Master program  U Montp. 20142021 : Chair, "Fundamental physics" undergraduate program  U Montp. 20152018 : Member, Administrative Board of the Institut Universitaire de France (IUF) 20162021 : Member, National Committee (section Condensed Matter)  CNRS 20182021 : Member, Scientific Board of the Institute of Phyics (INP)  CNRS 
Activités de Recherche: 
Quantum Physics Quantum systems out of equilibrium Open quantum systems CasimirLifshitz interaction Radiationmatter interaction Radiative heat transfer Light harvesting Quantum thermodynamics Quantum and classical nanophotonics Photonic topological insulators Emergent 2D/3D materials Disordered and complex systems Ultracold quantum gases 
Participation(s) à Projets: 

Domaines de Recherche:  Physique/Physique Quantique
 Physique/Matière Condensée/Gaz Quantiques
 Physique/Physique/Agrégats Moléculaires et Atomiques
 Physique/Physique/Physique Atomique
 Physique/Physique/Optique

Dernieres productions scientifiques :


Highrectification nearfield radiative thermal diode using Weyl semimetals
Auteur(s): Hu Yang, Liu Haotuo, Bing Yang, Shi Keshang, Antezza M., Wu Xiaohu, Sun Yasong
(Article) Publié:
Physical Review Materials, vol. 7 p.035201 (2023)
DOI: 10.1103/PhysRevMaterials.7.035201
Résumé: Thermal diodes, which allow heat transfer in a preferential direction while being blocked in a reverse direction, have numerous applications in thermal management, information processing, energy harvesting, etc. Typical materials of thermal diodes in previous works include phasechange and magnetooptical materials. However, such thermal diodes depend highly on specific working temperatures or external magnetic fields. In this work, we propose a nearfield radiative thermal diode (NFRTD) based on two Weyl semimetal (WSM) nanoparticles (NPs) mediated by a WSM planar substrate, which works without an external magnetic field and with flexible temperatures. Numerical results show that the maximum rectification ratio of NFRTD can be up to 2673 when the emitter is 200 K and receiver is 180 K, which exceeds the maximum value reported in some previous works by more than 10 times. The underlying physical mechanism is the strong coupling of the localized plasmon modes in the NPs and nonreciprocal surface plasmon polaritons in the substrate. In addition, we calculate the distribution of the Green's function and reflection coefficient to investigate nonreciprocal energy transfer in NFRTDs. Finally, we discuss the effects of momentum separation on the rectification performance of the NFRTD. This work demonstrates the great potential of WSMs in thermal rectification and paves a path for designing highperformance NFRTDs.



Electromagnetic scattering by a partially graphenecoated dielectric cylinder: Efficient computation and multiple plasmonic resonances
Auteur(s): Jeyar Y., Antezza M., Guizal B.
(Article) Publié:
Physical Review E, vol. 107 p.025306 (2023)
DOI: 10.1103/PhysRevE.107.025306
Résumé: We present a numerical approach for the solution of electromagnetic scattering from a dielectric cylinder partially covered with graphene. It is based on a classical FourierBessel expansion of the fields inside and outside the cylinder to which we apply ad hoc boundary conditions in the presence of graphene. Due to the singular nature of the electric field at the edges of the graphene sheet, we introduce auxiliary boundary conditions. The result is a particularly simple and efficient method allowing the study of diffraction from such structures. We also highlight the presence of multiple plasmonic resonances that we ascribe to the surface modes of the coated cylinder.



Radiative heat transfer in a lowsymmetry Bravais crystal
Auteur(s): Zhou ChengLong, Tang Gaoming, Zhang Yong, Antezza M., HongLiang Yi
(Article) Publié:
Physical Review B, vol. 106 p.115404 (2022)
Texte intégral en Openaccess :
Ref HAL: hal03806711_v1
Ref Arxiv: 2206.03022
DOI: 10.1103/PhysRevB.106.155404
Ref. & Cit.: NASA ADS
Exporter : BibTex  endNote
Résumé: Over the last few years, broken symmetry within crystals has attracted extensive attention since it can improve the control of light propagation. In particular, lowsymmetry Bravais crystal can support shear polaritons, which has great potential in thermal photonics. In this work, we first use the fluctuationdissipation theorem to investigate mechanisms of nearfield thermal radiation (NFTR) in a lowsymmetry Bravais crystal. The NFTR between such crystal slabs is nearly four orders of magnitude larger than the blackbody limit, demonstrating its remarkable potential for noncontact heat dissipation for nanoscale circuits or other devices. Moreover, we report a form of twistinduced nearfield thermal control system employing the lowsymmetry Bravais crystal medium (βGa2O3), showing that this crystal can serve as an excellent platform for twistinduced nearfield thermal control. Due to the intrinsic shear effect, the twistinduced modulation supported by lowsymmetry Bravais crystal exceeds that by highsymmetry crystal. We further clarify how the shear effect affects the twistinduced thermalradiation modulation supported by hyperbolic and elliptical polaritons and show that the shear effect significantly enhances the twistinduced thermal control induced by the elliptical polariton mode. These results open directions for thermalradiation control in lowsymmetry materials, including geological minerals, common oxides, and organic crystals.



Disorderinduced topological phase transition in HgCdTe crystals
Auteur(s): Krishtopenko S., Antezza M., Teppe F.
(Article) Publié:
Physical Review B, vol. 106 p.115203 (2022)
Texte intégral en Openaccess :
Ref HAL: hal03783120_v1
Ref Arxiv: 2206.14561
DOI: 10.1103/PhysRevB.106.115203
Ref. & Cit.: NASA ADS
Exporter : BibTex  endNote
Résumé: Using the selfconsistent Born approximation, we study a topological phase transition appearing in bulk HgCdTe crystals induced uncorrelated disorder due to both randomly distributed impurities and fluctuations in Cd composition. By following the densityofstates evolution, we clearly demonstrate the topological phase transition, which can be understood in terms of the disorderrenormalized mass of Kane fermions. We find that the presence of a heavyhole band in HgCdTe crystals leads to the topological phase transition at much lower disorder strength than is expected for conventional threedimensional topological insulators. Our theoretical results can also be applied to other narrowgap zincblende semiconductors such as InAs, InSb, and their ternary alloys InAsSb.
Commentaires: 8 pages, 4 figures



Torque and energy transfer in periodicsystems
Auteur(s): Antezza M.
Conférence invité: 745. WEHeraeusSeminar:"Photon, Phonon, and Electron Transitions in Coupled Nanoscale Systems" (Bad Honnef, DE, 20220919)
Ref HAL: hal03811148_v1
Exporter : BibTex  endNote
Résumé: In the first part we will show a study of the Casimir torque between two metallic onedimensional gratings rotated by an angle θ with respect to each other. We find that, for infinitely extended gratings, the Casimir energy is anomalouslydiscontinuous at θ = 0, due to a critical zeroorder geometric transition between a 2D and a 1Dperiodicsystem. We will comment on the relevant implication of this finding.In the second part I will discuss the Radiative heat transfer (RHT) and radiative thermal energy (RTE) for twodimensional (2D) nanoparticle ensembles in the framework of manybody radiative heat transfer theory. We consider nanoparticles made of different materials: metals (Ag), polar dielectrics (SiC), or insulatormetallic phasechange materials(VO2). We start by investigating the RHT between two parallel 2D finitesize squarelattice nanoparticleensembles, with particular attention to manybody interactions (MBI) effects. We fix the particle radius (a)as the smallest length scale, and we describe the electromagnetic scattering from particles within the dipoleapproximation. Depending on the minimal distance between the inplane particles (the lattice spacing p forperiodic systems), on the separation d between the two lattice and on the thermal wavelength,we systematically analyze the different physical regimes characterizing the RHT. Four regimes are identified,rarefied regime, dense regime, nonMBI regime, and MBI regime, respectively.

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