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Electron-electron interactions (EEIs) in 2D van der Waals structures is one of the topics with high current interest in physics. We report the observation of a negative parabolic magnetoresistance (MR) in multilayer 2D semiconductor InSe…

Mesoscale and Nanoscale Physics · Physics 2020-09-09 Arvind Shankar Kumar , Kasun Premasiri , Min Gao , U. Rajesh Kumar , Raman Sankar , Fang-Cheng Chou , Xuan P. A. Gao

Magnetoelectric (ME) interactions in layered structures of magnetostrictive and piezoelectric phases are mediated by mechanical deformation. Here we discuss the frequency dependence of ME coupling in bilayers and trilayers of Permendur, a…

Materials Science · Physics 2009-11-10 U. Laletsin , N. Padubnaya , G. Srinivasan , C. P. DeVreugd

Electronic transport in highly doped but still insulating silicon at low temperatures is dominated by hopping between localized states; it serves as a model system of a disordered solid for which the electronic interaction can be…

Strongly Correlated Electrons · Physics 2007-05-23 Marco Hering , Marc Scheffler , Martin Dressel , Hilbert v. Lohneysen

The elastic response of an electron fluid at finite frequencies is defined by the electron viscosity $\eta(\omega)$. We determine $\eta(\omega)$ for graphene at the charge neutrality point in the collisionless regime, including the leading…

Strongly Correlated Electrons · Physics 2018-11-06 Julia M. Link , Daniel E. Sheehy , Boris N. Narozhny , Jörg Schmalian

Spectral distribution functions of electron-phonon interaction $\alpha^2F(\omega )$ obtained by ab initio linear--response calculations are used to describe various superconducting and transport properties in a number of elemental metals…

Condensed Matter · Physics 2009-10-28 S. Y. Savrasov , D. Y. Savrasov

Multiferroic (MF) devices based on simultaneous ferroelectric and ferromagnetic phenomena are considered to be promising candidates for future bi-functional micro/nano-electronics. The multiferroic phenomena in two-dimensional materials is…

Applied Physics · Physics 2022-08-30 Rabia Tahir , Sabeen Fatima , Syedah Afsheen Zahra , Deji Akinwande , Syed Rizwana

We performed analytical calculations of the current-voltage and strain-voltage response of the heterostructure like "charged SPM tip electrode / gap / ionic-semiconductor film" caused by the local changes of (a) ions concentration…

Materials Science · Physics 2010-08-17 A. N. Morozovska , E. A. Eliseev , S. L. Bravina , S. V. Kalinin

The grand potential $\Omega$ and the response $R = - \partial \Omega /\partial x$ of a phase-coherent confined noninteracting electron gas depend sensitively on chemical potential $\mu$ or external parameter $x$. We compute their…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 P. Leboeuf , A. Monastra

Disorder-induced spectral correlations of mesoscopic quantum systems in the non-diffusive regime and their effect on the magnetic susceptibility are studied. We perform impurity averaging for non-translational invariant systems by combining…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Edward McCann , Klaus Richter

Studies about the constructive aspects of noise and fluctuations in different non-linear systems have shown that the addition of external noise to systems with an intrinsic noise may result in a less noisy response. Recently, the…

Materials Science · Physics 2009-11-13 D. Persano Adorno , N. Pizzolato , B. Spagnolo

The dynamical responses of a ferromagnetic film to a propagating spherical electromagnetic wave passing through it are studied by Monte Carlo simulation of two dimensional Ising ferromagnet. For a fixed set of values of the frequency and…

Statistical Mechanics · Physics 2015-06-16 Muktish Acharyya

For the successful implementation of organic electrochemical transistors in neuromorphic computing, bioelectronics, and real-time sensing applications it is essential to understand the factors that influence device switching times. Here we…

Applied Physics · Physics 2024-10-10 Juan Bisquert , Nir Tessler

Electrically conducting films in a time-varying transverse applied magnetic field are considered. Their behavior is strongly influenced by the self-field of the induced currents, making the electrodynamics nonlocal, and consequently…

Superconductivity · Physics 2013-09-04 J. I. Vestgarden , P. Mikheenko , Y. M. Galperin , T. H. Johansen

Recent developments in laser-excited photoemission electron microscopy (laser-PEEM) advance the visualization of electronic nematicity and nematic domain structures in iron-based superconductors. In FeSe and…

The effect of changing the driving frequency on the plasma density and the electron dynamics in a capacitive radio-frequency argon plasma operated at low pressures of a few Pa is investigated by Particle in Cell/Monte Carlo Collisions…

Correlated anion and cation motion can significantly reduce the overall ion conductivity in electrolytes versus the ideal conductivity calculated based on the diffusion constants alone. Using coarse-grained molecular dynamics simulations,…

Soft Condensed Matter · Physics 2020-06-01 Kuan-Hsuan Shen , Lisa M. Hall

The ultrafast response of the prototype Mott-Hubbard system (V1-xCrx)2O3 was systematically studied with fs pump-probe reflectivity, allowing us to clearly identify the effects of the metal-insulator transition on the transient response.…

Strongly Correlated Electrons · Physics 2011-08-29 B. Mansart , D. Boschetto , S. Sauvage , A. Rousse , M. Marsi

We investigate the effect of tuning the phonon energy on the correlation effects in models of electron-phonon interactions using DMFT. In the regime where itinerant electrons, instantaneous electron-phonon driven correlations and static…

Strongly Correlated Electrons · Physics 2015-05-13 J. P. Hague , N. d'Ambrumenil

An oscillatory magnetic field dependence of the DC voltage is observed when a low-frequency current flows through superconducting Sn-Ge thin-film composites near the percolation threshold. The paper also studies the experimental…

Superconductivity · Physics 2009-10-31 A. M. Glukhov , A. S. Pokhila , I. M. Dmitrenko , A. E. Kolinko , A. P. Panchekha

The present investigation reports on the fabrication and characterization of heterojunctions based on in situ Eu doped CdO layers, which were deposited on p-type silicon using the plasma assisted molecular beam epitaxy (PA MBE) method. The…

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