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We study the spin and charge dynamics of electrons in n-doped II--VI semiconductor multiple quantum wells when one or more quantum wells are doped with Mn. The interplay between strongly nonlinear inter-well charge transport and the large…

Condensed Matter · Physics 2009-11-07 Manuel Bejar , David Sanchez , Gloria Platero , A. H. MacDonald

It is shown that a flux of unpolarized electrons across a symmetric double barrier quantum well induces a spin polarization inside the well. Besides, the transmitted current acquires a spin polarized component and the spin-Hall current…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 A. G. Mal'shukov , C. S. Chu

Rotation of conducting and dielectric spherical particles levitating in the uniform electrostatic field is considered. A dipole moment of the spherical particle induced by the external uniform electrostatic field is inclined to the field if…

Classical Physics · Physics 2026-05-12 A. Duviryak

A magnetorheological fluid, which consists of magnetic particles suspended in a viscous fluid, flows freely with well-dispersed particles in a the absence of a magnetic field, but particle aggregation results in flow cessation when a field…

Fluid Dynamics · Physics 2022-07-20 V. Kumaran

A classical dielectric moving in a charged capacitor can create a magnetic field (Roentgen effect). A quantum dielectric, however, will not produce a magnetization, except at vortices. The magnetic field outside the quantum dielectric…

Soft Condensed Matter · Physics 2009-10-31 U. Leonhardt , P. Piwnicki

We calculate the stationary current through two double quantum dots which are interacting via a common phonon environment. Numerical and analytical solutions of a master equation in the stationary limit show that the current can be…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 T. Vorrath , T. Brandes

We show that a quantum Hall bilayer with the total filling $\nu = 1$ should exhibit a dynamical regime similar to the flux-flow in large Josephson junctions. This analogy may explain a conspicuous peak in the interlayer tunneling…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Michael M. Fogler , Frank Wilczek

We investigate the effects of spin-momentum locking on the interference and diffraction patterns due to a double- or single-slit in an electronic \emph{Gedankenexperiment}. We show that the inclusion of the spin-degree-of-freedom, when…

Mesoscale and Nanoscale Physics · Physics 2020-10-15 D. Bercioux , T. van den Berg , D. Ferraro , J. Rech , T. Jonckheere , T. Martin

Crossed electric and magnetic fields influence dipolar neutral particles in the same way as the magnetic field influences charged particles. The effect of crossed fields is proportional to the dipole moment of the particle (inherent or…

Quantum Gases · Physics 2020-04-28 D. V. Fil , S. I. Shevchenko

Spin ice systems display a variety of very nontrivial properties, the most striking being the existence in them of magnetic monopoles. Such monopole states can also have nontrivial electric properties: there exist electric dipoles attached…

Strongly Correlated Electrons · Physics 2021-06-09 D. I. Khomskii

We observe monopole oscillations in a mixture of Bose-Einstein condensates, where the usually dominant mean-field interactions are canceled. In this case, the system is governed by the next-order Lee-Huang-Yang (LHY) correction to the…

Quantum Gases · Physics 2021-06-17 Thomas G. Skov , Magnus G. Skou , Nils B. Jørgensen , Jan J. Arlt

Experiments towards realizing a readout of superconducting qubits by using ballistic Josephson vortices are reported. We measured the microwave radiation induced by a fluxon moving in an annular Josephson junction. By coupling a flux qubit…

Superconductivity · Physics 2015-06-12 Kirill G. Fedorov , Anastasia V. Shcherbakova , Roland Schäfer , Alexey V. Ustinov

We discuss an experiment in which two magnetic insulators that both show a field-induced magnetic-ordering transition are weakly coupled to one another and are placed into an ex- ternal magnetic field. If the respective magnetic states can…

Strongly Correlated Electrons · Physics 2012-12-18 Andreas Schilling , Henrik Grundmann

A single electron shared between two levels threaded by a magnetic flux is an irreducibly simple quantum system in which interference is predicted to occur. We demonstrate tuning of the tunnel coupling between two such electronic levels…

Mesoscale and Nanoscale Physics · Physics 2024-09-12 Christian G. Prosko , Ivan Kulesh , Michael Chan , Lin Han , Di Xiao , Candice Thomas , Michael J. Manfra , Srijit Goswami , Filip K. Malinowski

An axisymmetric magnetic field is applied to a spherical, turbulent flow of liquid sodium. An induced magnetic dipole moment is measured which cannot be generated by the interaction of the axisymmetric mean flow with the applied field,…

Plasma Physics · Physics 2007-05-23 E. J. Spence , M. D. Nornberg , C. M. Jacobson , R. D. Kendrick , C. B. Forest

We demonstrate that hexagonal graphene nanoflakes with zigzag edges display quantum interference (QI) patterns analogous to benzene molecular junctions. In contrast with graphene sheets, these nanoflakes also host magnetism. The cooperative…

Strongly Correlated Electrons · Physics 2019-02-26 Angelo Valli , Adriano Amaricci , Valentina Brosco , Massimo Capone

Using exact-diagonalization techniques supplemented by a Dyson equation embedding procedure, the transport properties of multilevel quantum dots are investigated in the Kondo regime. The conductance can be decomposed into the contributions…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 C. A. Büsser , G. B. Martins , K. A. Al-Hassanieh , Adriana Moreo , Elbio Dagotto

Macroscopic ensembles of radiating dipoles are ubiquitous in the physical and natural sciences. In the classical limit the dipoles can be described as damped-driven oscillators, which are able to spontaneously synchronize and collectively…

Self-sustained current oscillation observed in spin-blockaded double quantum dots is explained as a consequence of periodic motion of dynamically polarized nuclear spins (along a limit cycle) in the spin-blockaded regime under an external…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 B. Hu , X. R. Wang

We discuss the diamagnetism induced in an isolated quantum Hall bilayer with total filling factor one by an in-plane magnetic field. This is a signature of counterflow superfluidity in these systems. We calculate magnetically induced…

Mesoscale and Nanoscale Physics · Physics 2012-04-27 P. R. Eastham , N. R. Cooper , D. K. K. Lee