Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Zimmers, Alexandre"'
Autor:
Banguero, Melissa Alzate, Basak, Sayan, Raymond, Nicolas, Simmons, Forrest, Salev, Pavel, Schuller, Ivan K., Aigouy, Lionel, Carlson, Erica W., Zimmers, Alexandre
We have developed a new optical microscopy technique able to track micron-sized surface clusters as temperature is varied. Potential candidates for study include phase separated metal-insulator materials, ferroelectrics, and porous structures. Severa
Externí odkaz:
http://arxiv.org/abs/2301.04220
Autor:
Thees, Maximilian, Lee, Min-Han, Bouwmeester, Rosa Luca, Rezende-Gonçalves, Pedro H., David, Emma, Zimmers, Alexandre, Frantzeskakis, Emmanouil, Vargas, Nicolas M., Kalcheim, Yoav, Fèvre, Patrick Le, Horiba, Koji, Kumigashira, Hiroshi, Biermann, Silke, Trastoy, Juan, Rozenberg, Marcelo J., Schuller, Ivan K., Santander-Syro, Andrés F.
Publikováno v:
Science Advances 7(45), eabj1164 (2021)
In solids, strong repulsion between electrons can inhibit their movement and result in a "Mott" metal-to-insulator transition (MIT), a fundamental phenomenon whose understanding has remained a challenge for over 50 years. A key issue is how the wave-
Externí odkaz:
http://arxiv.org/abs/2207.04287
Akademický článek
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Autor:
Zhang, Tianzhen, Vlaic, Sergio, Pons, Stéphane, Allan, Guy, Delerue, Christophe, Assouline, Alexandre, Zimmers, Alexandre, David, Christophe, Rodary, Guillemin, Girard, Jean-Christophe, Roditchev, Dimitri, Aubin, Hervé
Publikováno v:
Phys. Rev. B 97, 214514 (2018), Editor's Suggestion
In the recent work of Ref.\cite{Vlaic2017-bs}, it has been shown that Pb nanocrystals grown on the electron accumulation layer at the (110) surface of InAs are in the regime of Coulomb blockade. This enabled the first scanning tunneling spectroscopy
Externí odkaz:
http://arxiv.org/abs/1810.08925
Autor:
Assouline, Alexandre, Feuillet-Palma, Cheryl, Bergeal, Nicolas, Zhang, Tianzhen, Mottaghizadeh, Alireza, Zimmers, Alexandre, Lhuillier, Emmanuel, Eddrief, Mahmoud, Atkinson, Paola, Aprili, Marco, Aubin, Herve
Publikováno v:
Nat. Commun. 10, 126 (2019)
The transmission of Cooper pairs between two weakly coupled superconductors produces a superfluid current and a phase difference; the celebrated Josephson effect. Because of time-reversal and parity symmetries, there is no Josephson current without a
Externí odkaz:
http://arxiv.org/abs/1806.01406
Autor:
Wang, Hongyue, Lhuillier, Emmanuel, Yu, Qian, Zimmers, Alexandre, Dubertret, Benoit, Ulysse, Christian, Aubin, Hervé
Publikováno v:
ACS Nano 11, 1222 (2017)
Addressing the optical properties of a single nanoparticle in the infrared is particularly challenging, thus alternative methods for characterizing the conductance spectrum of nanoparticles in this spectral range need to be developed. Here we describ
Externí odkaz:
http://arxiv.org/abs/1710.05206
Autor:
Assouline, Alexandre, Feuillet-Palma, Cheryl, Zimmers, Alexandre, Aprili, Marco, Harmand, Jean-Christophe, Aubin, Hervé
Publikováno v:
Phys. Rev. Lett. 119, 097701 (2017)
We present a study of Andreev Quantum Dots (QDots) fabricated with small-diameter (30 nm) Si-doped InAs nanowires where the Fermi level can be tuned across a mobility edge separating localized states from delocalized states. The transition to the ins
Externí odkaz:
http://arxiv.org/abs/1709.05251
Autor:
Vlaic, Sergio, Pons, Stéphane, Zhang, Tianzhen, Assouline, Alexandre, Zimmers, Alexandre, David, Christophe, Rodary, Guillemin, Girard, Jean-Christophe, Roditchev, Dimitri, Aubin, Hervé
Publikováno v:
Nat. Commun. 8, 14549 (2017)
How small superconductors can be? For isolated nanoparticles subject to quantum size effects, P.W. Anderson conjectured in 1959 that superconductivity could only exist when the electronic level spacing $\delta$ is smaller than the superconducting gap
Externí odkaz:
http://arxiv.org/abs/1709.05238
Autor:
ZIMMERS, Alexandre
Nous présentons la dépendance en température de la réponse infrarouge-visible des plans ab de Pr2-xCexCuO4. Dans l'état normal, en variant le dopage de couches minces de x=0.11 (non-supraconductrice) à x=0.17 (supraconductrice surdopée), on ob
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00007797
http://tel.archives-ouvertes.fr/docs/00/04/74/74/PDF/tel-00007797.pdf
http://tel.archives-ouvertes.fr/docs/00/04/74/74/PDF/tel-00007797.pdf
We report the study of metal-STO-metal memristors where the doping concentration in STO can be fine-tuned through electric field migration of oxygen vacancies. In this tunnel junction device, the evolution of the Density Of States (DoS) can be follow
Externí odkaz:
http://arxiv.org/abs/1401.2884