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Nanophysics

Group “Statistical Mechanics and Condensed Matter”

The nanophysics team of the CPT studies quantum electronic transport in mesoscopic and nanoscopic systems of condensed matter. The reduced size of these systems, and the conditions of study (low temperature, dimensionnality, ...) guarantees that the quantum coherence is preserved, and lead to new behavior related to the fundamental properties of quantum physics.

Superconducting and hybrid systems are a first topic of research. In a superconductor, electrons form Cooper pairs, and coherent transport of Cooper pairs between two superconductors leads to Josephson current. We have studied the properties of Josephson current through a a magnetic molecule, a semi-conductor wih spin-orbit coupling, etc. We also study out-of-equilibrium supercondcuting and hybrid systems with several leads, where the two electrons of a Cooper pair can be spatially separated through cross Andreev reflection, providing a source of quantum entanglement.

A second topic of research is quantum Hall effect, where electronic transport is done through unidimensionnal edge states. The presence of electronic interactions leads to collective transport modes, where the effective charge is different from the electron charge. Statistics of the waiting time between electrons in these system is also a subject we are studying. Unidimensionnal transport can also be used to study electronic quantum optics, where the concepts of quantum optics are adapted to the case of individual electrons.

A third topic of research is quantum thermoelectricity, which is interesting both on a fundamental level and for applications. We have shown that the Seebeck coefficient can be strongly enhanced in the non-stationnary regime, and we have shown the strong link between thermoelectric efficiency and mixed correlators charge/heat. We continue the study of mixed correlators in several types of nanojunctions.

Directory of Members

Bertin Bruno PhD candidate
Email
Crépieux Adeline University faculty
+33.4.91.26.95.30 Email
Devillard Pierre University faculty
+33.4.91.26.95.23 Email
Gremaud Benoît Researcher
Chef de l’équipe « Nanophysique »
+33.4.91.26.95.25 Email
Jonckheere Thibaut Researcher
+33.4.91.26.95.36 Email
MALLA Modar PhD candidate
Email
Martin Thierry Director
University faculty
Correspondant LabEx OCEVU
Référent pôle de recherche interdisciplinaire et intersectoriel AMU - Sciences, technologies avancées
+33.4.91.26.95.41 Email
Raymond Laurent University faculty
+33.4.91.26.95.50 Email
Rech Jérôme Researcher
+33.4.91.26.95.34 Email
Verga Alberto University faculty
+33.4.91.26.95.04 Email

List of Publications

86 results
Journal article
Silvana Guitarra, Universidad San, Francisco de Quito, P. Mahato, D. Deleruyelle, L. Raymond, L. Trojman
Stochastic based compact model to predict highly variable electrical characteristics of organic CBRAM devices
Solid-State Electronics, Elsevier, 2021, 185, pp.108055. ⟨10.1016/j.sse.2021.108055⟩
Journal article
Adeline Crépieux
Electronic heat current fluctuations in a quantum dot
Physical Review B, American Physical Society, 2021, 103 (4), pp.045427. ⟨10.1103/PhysRevB.103.045427⟩
Journal article
M. Hashisaka, T. Jonckheere, T. Akiho, S. Sasaki, J. Rech, T. Martin, K. Muraki
Andreev reflection of fractional quantum Hall quasiparticles
Nature Communications, Nature Publishing Group, 2021, 12, pp.2794. ⟨10.1038/s41467-021-23160-6⟩
Preprint, Working paper
Benoît Grémaud, G. G. Batrouni
Pairing and pair superfluid density in one-dimensional Hubbard models
2020
Journal article
Dario Bercioux, Tineke van den Berg, Dario Ferraro, Jerome Rech, Thibaut Jonckheere, Thierry Martin
Wave-particle duality of electrons with spin-momentum locking
The European Physical Journal Plus, Springer, 2020, 135 (10), pp.811. ⟨10.1140/epjp/s13360-020-00837-3⟩
Journal article
M. Lavagna, V. Talbo, T. Duong, Adeline Crépieux
Level anticrossing effect in single-level or multilevel double quantum dots: Electrical conductance, zero-frequency charge susceptibility, and Seebeck coefficient
Physical Review B, American Physical Society, 2020, 102 (11), pp.115112. ⟨10.1103/PhysRevB.102.115112⟩
Journal article
Shifeng Cui, Benoît Grémaud, Wenan Guo, G. G. Batrouni
Nonlinear two-photon Rabi-Hubbard model: Superradiance, photon, and photon-pair Bose-Einstein condensates
Physical Review A, American Physical Society 2020, 102 (3), pp.033334. ⟨10.1103/PhysRevA.102.033334⟩
Journal article
Jérôme Rech, T. Jonckheere, B. Grémaud, T. Martin
Negative Delta-T Noise in the Fractional Quantum Hall Effect
Physical Review Letters, American Physical Society, 2020, 125 (8), pp.086801. ⟨10.1103/PhysRevLett.125.086801⟩
Journal article
Diana Vaclavkova, Alex Delhomme, Clément Faugeras, Marek Potemski, Aleksander Bogucki, Jan Suffczynski, Piotr Kossacki, Andrew Wildes, Benoît Grémaud, Andrés Saúl
Magnetoelastic interaction in the two-dimensional magnetic material MnPS3 studied by first principles calculations and Raman experiments
2D Materials, IOP Publishing, 2020, 7 (3), pp.035030. ⟨10.1088/2053-1583/ab93e3⟩
Journal article
R. Jacquet, A. Popoff, K.-I. Imura, Jérôme Rech, T. Jonckheere, L. Raymond, A. Zazunov, T. Martin
Theory of nonequilibrium noise in general multiterminal superconducting hybrid devices: Application to multiple Cooper pair resonances
Physical Review B, American Physical Society, 2020, 102 (6), pp.064510. ⟨10.1103/PhysRevB.102.064510⟩
86 results

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