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We study the effect of non-homogeneous out-of-plane magnetic field on the behaviour of 2D spatially indirect excitons. Due to the difference of magnetic field acting on electrons and holes the total Lorentz force affecting the center of…

Mesoscale and Nanoscale Physics · Physics 2013-02-08 K. B. Arnardottir , O. Kyriienko , I. A. Shelykh

The inverse Faraday effect is an opto-magnetic phenomenon that describes the ability of circularly polarized light to induce magnetism in solids. The capability of light to control magnetic order in solid state materials and devices is of…

Materials Science · Physics 2023-12-20 Víctor H. Ortiz , Shashi B. Mishra , Luat Vuong , Sinisa Coh , Richard B. Wilson

Polarization holonomy is analytically determined for a class of closed, spherical trajectories of light transiting a black hole in the Kerr metric. The leading order geometric optics approximation admits a closed-form expression of such…

General Relativity and Quantum Cosmology · Physics 2024-11-12 Mark T. Lusk

We investigate the possibility of observing a magneto-transverse scattering of photons from alkaline-earth-like atoms as well as alkali-like ions and provide orders of magnitude. The transverse magneto-scattering is physically induced by…

Atomic Physics · Physics 2016-10-12 B. A. van Tiggelen , D. Wilkowski

We have measured the photothermal effect in a single cross-polarized interferometer at audio frequencies (5 Hz - 4 kHz). In a Fabry-Perot interferometer, light in one polarization is chopped to periodically heat the interferometer mirrors,…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Shanti R. Rao

Quantum Efficiency (QE) measurements of single photon photoemission from a Cu(111) single crystal and a Cu polycrystal photocathodes, irradiated by 150 fs-6.28 eV laser pulses, are reported over a broad range of incidence angle, both in s…

We study the photoassisted shot noise generated by a periodic voltage in the fractional quantum Hall regime. Fluctuations of the current are due to the presence of a quantum point contact operating in the weak backscattering regime. We show…

Mesoscale and Nanoscale Physics · Physics 2018-04-24 Luca Vannucci , Flavio Ronetti , Dario Ferraro , Jérôme Rech , Thibaut Jonckheere , Thierry Martin , Maura Sassetti

A fully relativistic description of the spin-orbit induced spin Hall effect is presented that is based on Kubo's linear response formalism. Using an appropriate operator for the spin current density a Kubo-St\v{r}eda-like equation for the…

We investigate numerically the integer quantum Hall effect (IQHE) in a two-dimensional square lattice with non-interacting electrons subjected to disorder and uniform magnetic field in a direction perpendicular to the lattice plane. We…

Mesoscale and Nanoscale Physics · Physics 2012-09-07 Paramita Dutta , Santanu K. Maiti , S. N. Karmakar

An appearance of a direct current perpendicularly to a constant component of an electric field in material with Rashba Hamiltonian under the influence of an elliptically polarized wave is investigated in one-subband approximation. On its…

Mesoscale and Nanoscale Physics · Physics 2014-07-07 V. I. Konchenkov , S. V. Kryuchkov , D. V. Zav'yalov

We developed a new microwave Hall effect measurement method for materials in the skin depth region at low temperatures using a cross-shaped bimodal cavity. We analytically calculated electromagnetic fields in the cross-shaped cavity, and…

Instrumentation and Detectors · Physics 2021-01-19 Ryo. Ogawa , Tatsunori Okada , Hideyuki Takahashi , Fuyuki Nabeshima , Atsutaka Maeda

We report on the observation of the circular transversal terahertz photoconductivity in monolayer graphene supplied by a back gate. The photoconductivity response is caused by the free carrier absorption and reverses its sign upon switching…

Mesoscale and Nanoscale Physics · Physics 2022-05-04 S. Candussio , S. Bernreuter , T. Rockinger , K. Watanabe , T. Taniguchi , J. Eroms , I. A. Dmitriev , D. Weiss , S. D. Ganichev

Shift current and ballistic current have been proposed to explain the bulk photovoltaic effect (BPVE), and there have been experiments designed to separate the two mechanisms. These experiments are based on the assumption that under…

Materials Science · Physics 2023-05-24 Zhenbang Dai , Andrew M. Rappe

Using Hall photovoltage measurements, we demonstrate that an anomalous Hall-voltage can be induced in few layer WTe2 under circularly polarized light illumination. By applying a bias voltage along different crystal axes, we find that the…

Recent advances in the field of condensed-matter physics have unlocked the potential to realize and control emergent material phases that do not exist in thermal equilibrium. One of the most promising concepts in this regard is Floquet…

The orbital Hall effect has been theoretically predicted but its direct observation is a challenge. Here, we report the magneto-optical detection of current-induced orbital accumulation at the surface of a light 3$d$ transition metal, Cr.…

Mesoscale and Nanoscale Physics · Physics 2023-10-16 Igor Lyalin , Sanaz Alikhah , Marco Berritta , Peter M. Oppeneer , Roland K. Kawakami

In this paper, we develop a unified theory for describing Hall effect in various electronic systems based on a pure electron picture (without the hole concept). We argue that the Hall effect is the magnetic field induced symmetry breaking…

Strongly Correlated Electrons · Physics 2009-01-26 X. Q. Huang

We report {\it quantitative} microwave Faraday rotation measurements conducted with a high-mobility two-dimensional electron gas (2DEG) in a GaAs/AlGaAs semiconductor heterostructure. In a magnetic field, the Hall effect and the Faraday…

Optical Faraday rotation is one of the most direct and practically important manifestations of magnetically broken time-reversal symmetry. The rotation angle is proportional to the distance traveled by the light, and up to now sizeable…

We investigate the emerging consequences of an applied strong in-plane electric field on a macroscopically large graphene sheet subjected to a perpendicular magnetic field, by determining in exact analytical form various many-body…

General Physics · Physics 2018-02-07 Georgios Konstantinou , Konstantinos Moulopoulos