output
19962026
most citedEfficient metallic spintronic emitters of ultrabroadband terahertz radiation

947 citations

Showing 2020Show all

39 papers · 1 filter

cond-mat.mes-hall2020★ 7 cited

Gigahertz frame rate imaging of charge-injection dynamics in a molecular light source

Anna Rosławska, Pablo Merino, Christopher C. Leon +4

Light sources on the scale of single molecules can be addressed and characterized on their proper sub-nanometer scale by scanning tunneling microscopy induced luminescence (STML).…

physics.app-ph2020★ 42 cited

Few layer graphene from mechanical exfoliation of graphite based materials. Structure-dependent characteristics

Azhar A. Pirzado, Francois Le Normand, Thierry Romero +4

We present a high scale method to produce few layer graphene (FLG) based on the mechanical exfoliation of graphite and compare the obtained FLG with the one reported earlier arisin…

quant-ph2020

Probing quantum effects with classical stochastic analogs

Rémi Goerlich, Giovanni Manfredi, Paul-Antoine Hervieux +2

We propose a method to construct a classical analog of an open quantum system, namely a single quantum particle confined in a potential well and immersed in a thermal bath. The cla…

cond-mat.mtrl-sci2020★ 24 cited

Flexo-Elastic Control Factors of Domain Morphology in Core-Shell Ferroelectric Nanoparticles: Soft and Rigid Shells

Eugene A. Eliseev, Anna N. Morozovska, Riccardo Hertel +4

Within the framework of the Landau-Ginzburg-Devonshire approach we explore the impact of elastic anisotropy, electrostriction, flexoelectric couplings, and mismatch strain on the d…

cond-mat.mes-hall2020★ 20 cited

Dzyaloshinskii-Moriya interaction induced by an ultrashort electromagnetic pulse: Application to coherent (anti)ferromagnetic skyrmion nucleation

L. Desplat, S. Meyer, J. Bouaziz +4

We show how a Dzyaloshinskii-Moriya interaction can be generated in an ultrathin metal film from the induced internal electric field created by an ultrashort electromagnetic pulse.…

cond-mat.mes-hall2020★ 2 cited

Imaging signatures of the local density of states in an electronic cavity

Carolin Gold, Beat A. Bräm, Michael S. Ferguson +9

We use Scanning Gate Microscopy to study electron transport through an open, gate-defined resonator in a Ga(Al)As heterostructure. Raster-scanning the voltage-biased metallic tip a…

cond-mat.mes-hall2020★ 6 cited

Many-Body Physics in Small Systems: Observing the Onset and Saturation of Correlation in Linear Atomic Chains

Emily Townsend, Tomáš Neuman, Alex Debrecht +2

The exact study of small systems can guide us toward measures for extracting information about many-body physics as we move to more complex systems capable of quantum information p…

quant-ph2020★ 36 cited

A quantum optics approach to photoinduced electron transfer in cavities

David Wellnitz, Guido Pupillo, Johannes Schachenmayer

We study a simple model for photoinduced electron transfer reactions for the case of many donor-acceptor pairs that are collectively and homogeneously coupled to a photon mode of a…

cond-mat.mes-hall2020★ 5 cited

Single- and narrow-line photoluminescence in a boron nitride-supported MoSe/graphene heterostructure

Luis E. Parra López, Loïc Moczko, Joanna Wolff +6

Heterostructures made from van der Waals materials provide a template to investigate proximity effects at atomically sharp heterointerfaces. In particular, near-field charge and en…

astro-ph.CO2020★ 9 cited

Structure formation in a Dirac-Milne universe: comparison with the standard cosmological model

Giovanni Manfredi, Jean-Louis Rouet, Bruce N. Miller +1

The presence of complex hierarchical gravitational structures is one of the main features of the observed universe. Here, structure formation is studied both for the standard ($Λ\r…

cond-mat.soft2020★ 7 cited

Cluster self-assembly condition for arbitrary interaction potentials

Alejandro Mendoza-Coto, Rómulo Cenci, Guido Pupillo +2

We present a sufficient criterion for the emergence of cluster phases in an ensemble of interacting classical particles with repulsive two-body interactions. Through a zero-tempera…

cond-mat.mtrl-sci2020★ 5 cited

Properties of amorphous CoZr(RE) (RE=Gd, Sm, Dy) films with various uniaxial anisotropies, prepared by a new process

D. H Shin, H Niedoba, Y. Henry +5

If a DC magnetic field is applied parallel to the plane of amorphous CoZr(RE) thin films during sputter depositing, a uniaxial anisotropy is formed the direction of which depends u…

cond-mat.mes-hall2020★ 7 cited

Signatures of folded branches in the scanning gate microscopy of ballistic electronic cavities

Keith R. Fratus, Camille Le Calonnec, Rodolfo A. Jalabert +2

We demonstrate the emergence of classical features in electronic quantum transport for the scanning gate microscopy response in a cavity defined by a quantum point contact and a mi…

cond-mat.mes-hall2020★ 13 cited

Quantum advantage in a molecular spintronic engine that harvests thermal fluctuation energy

Bhavishya Chowrira, Lalit Kandpal, Mathieu Lamblin +28

Recent theory and experiments have showcased how to harness quantum mechanics to assemble heat/information engines with efficiencies that surpass the classical Carnot limit. So far…

cond-mat.mtrl-sci2020★ 12 cited

Thickness-dependent electron momentum relaxation times in iron films

K. L. Krewer, W. Zhang, J. Arabski +4

Terahertz time-domain conductivity measurements in 2 to 100 nm thick iron films resolve the femtosecond time delay between applied electric fields and resulting currents. This curr…

cond-mat.mes-hall2020★ 7 cited

Quantifying the thermal stability in perpendicularly magnetized ferromagnetic nanodisks with forward flux sampling

L. Desplat, J. -V. Kim

The thermal stability in nanostructured magnetic systems is an important issue for applications in information storage. From a theoretical and simulation perspective, an accurate p…

cond-mat.stat-mech2020★ 18 cited

Noise and ergodic properties of Brownian motion in an optical tweezer: looking at the crossover between Wiener and Ornstein-Uhlenbeck processes

Rémi Goerlich, Minghao Li, Samuel Albert +3

We characterize throughout the spectral range of an optical trap the nature of the noise at play and the ergodic properties of the corresponding Brownian motion of an overdamped tr…

cond-mat.mes-hall2020★ 23 cited

Three-Dimensional Chiral Magnetization Structures in FeGe Nanospheres

Swapneel Amit Pathak, Riccardo Hertel

Skyrmions, spin spirals, and other chiral magnetization structures developing in materials with intrinsic Dzyaloshinsky-Moriya Interaction display unique properties that have been…

cond-mat.mes-hall2020★ 41 cited

Entropy-reduced retention times in magnetic memory elements: A case of the Meyer-Neldel Compensation Rule

L. Desplat, J. -V. Kim

We compute mean waiting times between thermally-activated magnetization reversals in a nanodisk with parameters similar to a free CoFeB layer used in magnetic random access memorie…

cond-mat.mes-hall2020★ 14 cited

Asymmetric skyrmion-antiskyrmion production in ultrathin ferromagnetic films

Ulrike Ritzmann, Louise Desplat, Bertrand Dupé +2

Ultrathin ferromagnets with frustrated exchange and the Dzyaloshinskii-Moriya interaction can support topological solitons such as skyrmions and antiskyrmions, which are metastable…

cond-mat.mes-hall2020★ 16 cited

Plasmonic modes in cylindrical nanoparticles and dimers

Charles A. Downing, Guillaume Weick

We present analytical expressions for the resonance frequencies of the plasmonic modes hosted in a cylindrical nanoparticle within the quasistatic approximation. Our theoretical mo…

cond-mat.mes-hall2020

Many-body effects in suspended graphene probed through magneto-phonon resonances

Stéphane Berciaud, Marek Potemski, Clément Faugeras

We make use of micro-magneto Raman scattering spectroscopy to probe magneto-phonon resonances (MPR) in suspended mono- to penta-layer graphene. MPR correspond to avoided crossings…

cond-mat.mtrl-sci2020★ 10 cited

Tailoring femtosecond hot-electron pulses for ultrafast spin manipulation

Nicolas Bergeard, Michel Hehn, Karel Carva +3

We have measured the hot-electron induced demagnetization of a [Co/Pt]2 multilayer in M(x nm)/Cu(100 nm)/[Co(0.6 nm)/Pt(1.1 nm)]2 samples depending on the nature of the capping lay…

cond-mat.stat-mech2020★ 2 cited

Self-consistent renormalization group approach to continuous phase transitions in alloys. Application to ordering in -brass

V. I. Tokar

A self-consistent (SC) renormalization group approach of the effective medium kind has been developed and applied to the solution of the Ising model (IM). A renormalization group e…