Search Results - "Friedland, K J"

Anisotropic quantum Hall effect in epitaxial graphene on stepped SiC surfaces by Schumann, T., Friedland, K.-J., Oliveira, M. H., Tahraoui, A., Lopes, J. M. J., Riechert, H.

“…We investigate the magnetotransport properties of epitaxial graphene on SiC(0001), which exhibits a stepped surface with regular terraces and step edges. We…”
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Optically induced strong intermodal coupling in mechanical resonators at room temperature by Ohta, R., Okamoto, H., Hey, R., Friedland, K. J., Yamaguchi, H.

“…Strong parametric mode coupling in mechanical resonators is demonstrated at room temperature by using the photothermal effect in thin membrane structures…”
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Resistance asymmetry of a two-dimensional electron gas caused by an effective spin injection by Golosov, D. I., Shlimak, I., Butenko, A., Friedland, K.-J., Kravchenko, S. V.

“…We have performed conductivity measurements on a Si-MOSFET sample with a slot in the upper gate, allowing for different electron densities n sub(1) and n…”
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Mechanical vibration of a cylindrically rolled-up cantilever shell in microelectromechanical and nanoelectromechanical systems by Izumida, W., Hirayama, Y., Okamoto, H., Yamaguchi, H., Friedland, K.-J.

“…The mechanical vibration of a cylindrically rolled-up cantilever shell is studied for possible use as micro- and nano-electromechanical systems. The system is…”
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Quantum Hall effect in a high-mobility two-dimensional electron gas on the surface of a cylinder by Friedland, K.-J., Siddiki, A., Hey, R., Kostial, H., Riedel, A., Maude, D. K.

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Inhomogeneous microstrain in cylindrical semiconductor heterostructures and its influence on the adiabatic motion of electrons by Jenichen, B., Jahn, U., Nikulin, A., Hey, R., Santos, P. V., Friedland, K.-J.

“…We analyze fluctuation of the layer thicknesses and its influence on the strain state of (In,Ga)As/(Al,Ga)As microtubes containing quantum well structures. In…”
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Influence of spin polarization on resistivity of a two-dimensional electron gas in Si MOSFET at metallic densities by Shlimak, I., Butenko, A., Golosov, D. I., Friedland, K.-J., Kravchenko, S. V.

“…Positive magnetoresistance (PMR) of a silicon MOSFET in parallel magnetic fields B has been measured at high electron densities n≫nc, where nc is the critical…”
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Giant asymmetry of the longitudinal magnetoresistance in high-mobility two-dimensional electron gas on a cylindrical surface by Vorob’ev, A. B., Friedland, K.-J., Kostial, H., Hey, R., Jahn, U., Wiebicke, E., Yukecheva, Ju. S., Prinz, V. Ya

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Measurements of ballistic transport at nonuniform magnetic fields in cross junctions of a curved two-dimensional electron gas by Friedland, K.-J., Hey, R., Kostial, H., Riedel, A., Ploog, K. H.

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Origin of high-temperature ferromagnetism in (Ga,Mn)N layers grown on 4H–SiC(0001) by reactive molecular-beam epitaxy by Dhar, S., Brandt, O., Trampert, A., Däweritz, L., Friedland, K. J., Ploog, K. H., Keller, J., Beschoten, B., Güntherodt, G.

“…We report on the growth, structural as well as magnetic characterization of (Ga,Mn)N epitaxial layers grown directly on 4H–SiC(0001) by reactive molecular-beam…”
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Spatial distribution of structural disorder in Co2FeSi films studied by anisotropic magnetoresistance by Bruski, P., Friedland, K.-J., Farshchi, R., Herfort, J., Ramsteiner, M.

“…We studied the spatial distribution of the partially disordered B2 phase in Co2FeSi films by anisotropic magnetoresistance measurements. The analysis of our…”
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Stress-modified structural and electronic properties of epitaxial MnAs layers on GaAs by Takagaki, Y., Herrmann, C., Herfort, J., Hucho, C., Friedland, K.-J.

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Strained quantum wells in scrolled structures studied by μ-photoluminescence by Hey, R., Ramsteiner, M., Santos, P.V., Friedland, K.-J.

“…We investigate the impact of the specific strain gradient on the optical properties of quantum well (QW) structures. This strain gradient emerges if the layer…”
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Multi-channel magnetotransport in Co2FeSi/(Al,Ga)As spin-LEDs by Farshchi, R., Bruski, P., Ramsteiner, M., Herfort, J., Brandt, O., Manzke, Y., Friedland, K.-J., Grahn, H.T.

“…We have performed Hall effect measurements on Co2FeSi/(Al,Ga)As spin light emitting diodes and have found unique field dependencies that differ strongly from…”
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Electron transport in a slot-gate Si MOSFET by Shlimak, I, Ginodman, V, Butenko, A, Friedland, K.-J, Kravchenko, S. V

“…The transversal and longitudinal resistance in the quantum Hall effect regime was measured in a Si MOSFET sample in which a slot-gate allows one to vary the…”
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Quantum Hall ferromagnet at high filling factors: A magnetic-field-induced Stoner transition by Piot, B. A., Maude, D. K., Henini, M., Wasilewski, Z. R., Friedland, K. J., Hey, R., Ploog, K. H., Toropov, A. I., Airey, R., Hill, G.

“…Spin splitting in the integer quantum Hall effect is investigated for a series of Al$_{x}$Ga$_{1-x}$As/GaAs heterojunctions and quantum wells…”
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New Concept for the Reduction of Impurity Scattering in Remotely Doped GaAs Quantum Wells by Friedland, K, Hey, R, Kostial, H, Klann, R, Ploog, K

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Magnetic anisotropy in Heusler alloy Fe3Si films on GaAs(1 1 3)A by HERFORT, J, MUDULI, P. K, FRIEDLAND, K.-J, SCHONHERR, H.-P, PLOOG, K. H

“…The magnetic anisotropy in thin Heusler alloy Fe3Si films on GaAs(113)A substrates is studied using superconducting quantum interference device magnetometry…”
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Quantized dispersion of two-dimensional magnetoplasmons detected by photoconductivity spectroscopy by HOLLAND, S, HEYN, Ch, HEITMANN, D, BATKE, E, HEY, R, FRIEDLAND, K. J, HU, C.-M

“…We find that the long-wavelength magnetoplasmon, resistively detected by photoconductivity spectroscopy in high-mobility two-dimensional electron systems,…”
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Conductance asymmetry of a slot gate Si-MOSFET in a strong parallel magnetic field by Shlimak, I., Golosov, D.I., Butenko, A., Friedland, K.-J., Kravchenko, S.V.

“…We report measurements on a Si‐MOSFET sample with a slot in the upper gate, allowing for different electron densities n1,2 across the slot. The dynamic…”
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