947 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR486 papers
- Université de StrasbourgFR421 papers
- Institut de Science et d'Ingénierie SupramoléculairesFR85 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR40 papers
- Université Paris-SaclayFR33 papers
- Universität InnsbruckAT26 papers
- CEA Paris-SaclayFR25 papers
- Karlsruhe Institute of TechnologyDE25 papers
- University of AugsburgDE22 papers
- Université de LorraineFR21 papers
- Institut Jean LamourFR20 papers
- Synchrotron SOLEILFR19 papers
38 papers · 1 filter
Electrically-driven vibronic spectroscopy with sub-molecular resolution
Benjamin Doppagne, Michael C. Chong, Etienne Lorchat +6
A scanning tunneling microscope is used to generate the electroluminescence of phthalocyanine molecules deposited on NaCl/Ag(111). Photon spectra reveal an intense emission line at…
Bismuth iron garnet Bi3Fe5O12: a room temperature magnetoelectric material
Elena Popova, Alexander Shengelaya, Dimitri Daraselia +7
The possibility to control the magnetic properties of a material with an electric field at room temperature is highly desirable for modern applications. Moreover, a coupling betwee…
Electron backscattering in a cavity: ballistic and coherent effects
A. A. Kozikov, D. Weinmann, C. Rossler +4
Numerous experimental and theoretical studies have focused on low-dimensional systems locally perturbed by the biased tip of a scanning force microscope. In all cases either open o…
First-principles calculations that clarify energetics and reactions of oxygen adsorption and carbon desorption on 4H-SiC () surface
Han Li, Yu-ichiro Matsushita, Mauro Boero +1
We report static and dynamic first-principles calculations that provide atomistic pictures of the initial stage of the oxidation processes occurring at the () surface of…
Rydberg optical Feshbach resonances in cold gases
Nóra Sándor, Rosario González-Férez, Paul S. Julienne +1
We propose a novel scheme to efficiently tune the scattering length of two colliding ground-state atoms by off-resonantly coupling the scattering-state to an excited Rydberg-molecu…
Topological collective plasmons in bipartite chains of metallic nanoparticles
Charles A. Downing, Guillaume Weick
We study a bipartite linear chain constituted by spherical metallic nanoparticles, where each nanoparticle supports a localized surface plasmon. The near-field dipolar interaction…
Spin-wave propagation in ultra-thin YIG based waveguides
M. Collet, O. Gladii, M. Evelt +9
Spin-wave propagation in an assembly of microfabricated 20 nm thick, 2.5 μm wide Yttrium Iron Garnet (YIG) waveguides is studied using propagating spin-wave spectroscopy (PSWS) and…
Two holes in a two-dimensional quantum antiferromagnet: A variational study based on entangled-plaquette states
Fabio Mezzacapo, Adriano Angelone, Guido Pupillo
We show that the entangled-plaquette variational ansatz can be adapted to study the two-dimensional model in the presence of two mobile holes. Specifically, we focus on a squ…
Nanohelices as superlattices: Bloch oscillations and electric dipole transitions
C. A. Downing, M. G. Robinson, M. E. Portnoi
Subjecting a nanohelix to a transverse electric field gives rise to superlattice behavior with tunable electronic properties. We theoretically investigate such a system and find Bl…
Massless Dirac fermions in two dimensions: Confinement in nonuniform magnetic fields
C. A. Downing, M. E. Portnoi
We show how it is possible to trap two-dimensional massless Dirac fermions in spatially inhomogeneous magnetic fields, as long as the formed magnetic quantum dot (or ring) is of a…
Ubiquitous diffraction resonances in positronium formation from fullerenes
Paul-Antoine Hervieux, Anzumaan R. Chakraborty, Himadri S. Chakraborty
Due to the dominant electron capture by positrons from the molecular wall and the spatial dephasing across the wall-width, a powerful diffraction effect universally underlies the p…
Phase space methods for the spin dynamics in condensed matter systems
Jerome Hurst, Paul-Antoine Hervieux, Giovanni Manfredi
Using the phase-space formulation of quantum mechanics, we derive a four-component Wigner equation for a system composed of spin-1/2 fermions (typically, electrons) including the Z…
From tunneling to contact in a magnetic atom: the non-equilibrium Kondo effect
Deung-Jang Choi, Paula Abufager, Laurent Limot +1
A low-temperature scanning tunneling microscope was employed to study the differential conductance in an atomic junction formed by an adsorbed Co atom on a Cu(100) surface and a co…
Kondo resonance of a Co atom exchange coupled to a ferromagnetic tip
D. -J. Choi, S. Guissart, M. Ormaza +4
The Kondo effect of a Co atom on Cu(100) was investigated with a low-temperature scanning tunneling microscope using a monoatomically sharp nickel tip. Upon a tip-Co contact, the d…
Optical Writing of Magnetic Properties by Remanent Photostriction
V. Iurchuk, D. Schick, J. Bran +13
We present an optically induced remanent photostriction in BiFeO3, resulting from the photovoltaic effect, which is used to modify the ferromagnetism of Ni film in a hybrid BiFeO3/…
Monitoring Electrostatically-Induced Deflection, Strain and Doping in Suspended Graphene using Raman Spectroscopy
Dominik Metten, Guillaume Froehlicher, Stéphane Berciaud
Electrostatic gating offers elegant ways to simultaneously strain and dope atomically thin membranes. Here, we report on a detailed \textit{in situ} Raman scattering study on graph…
Magnetic quantum dots and rings in two dimensions
C. A. Downing, M. E. Portnoi
We consider the motion of electrons confined to a two dimensional plane with an externally applied perpendicular inhomogeneous magnetic field, both with and without a Coulomb poten…
Simulating Quantum Spin Models using Rydberg-Excited Atomic Ensembles in Magnetic Microtrap Arrays
Shannon Whitlock, Alexander W. Glaetzle, Peter Hannaford
We propose a scheme to simulate lattice spin models based on strong and long-range interacting Rydberg atoms stored in a large-spacing array of magnetic microtraps. Each spin is en…
Cavity polaritons with Rydberg blockade and long-range interactions
Marina Litinskaya, Edoardo Tignone, Guido Pupillo
We study interactions between polaritons, arising when photons strongly couple to collective excitations in an array of two-level atoms trapped in an optical lattice inside a cavit…
Room temperature polarization in the ferrimagnetic Ga2-xFexO3 ceramics
B. Kundys, F. Roulland, C. Lefevre +3
The effect of the Fe-Ga ratio on the magnetic and electric properties of the multiferroic Ga2-xFexO3 compound has been studied in order to determine the composition range exhibitin…
Nonradiative limitations to plasmon propagation in chains of metallic nanoparticles
Adam Brandstetter-Kunc, Guillaume Weick, Charles A. Downing +2
We investigate the collective plasmonic modes in a chain of metallic nanoparticles that are coupled by near-field interactions. The size- and momentum-dependent nonradiative Landau…
Quantum atomistic approach for interacting spins
O. Morandi
The phenomenological Landau theory of the spin precession has been used to reproduce the out-of-equilibrium properties of many magnetic systems. However, such an approach suffers f…
Plasmon polaritons in cubic lattices of spherical metallic nanoparticles
Simon Lamowski, Charlie-Ray Mann, Felicitas Hellbach +3
We theoretically investigate plasmon polaritons in cubic lattices of spherical metallic nanoparticles. The nanoparticles, each supporting triply-degenerate localized surface plasmo…
Charge and spin diffusion on the metallic side of the metal-insulator transition: a self-consistent approach
Thomas Wellens, Rodolfo A. Jalabert
We develop a self-consistent theory describing the spin and spatial electron diffusion in the impurity band of doped semiconductors under the effect of a weak spin-orbit coupling.…