Search Results - "Halterman, Klaus"
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Spontaneous edge accumulation of spin currents in finite-size two-dimensional diffusive spin-orbit coupled SFS heterostructures
Published in New journal of physics (03-03-2015)“…We theoretically study spin and charge currents through finite-size two-dimensional s-wave superconductor/uniform ferromagnet/s-wave superconductor (S/F/S)…”
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Total transmission and total reflection by zero index metamaterials with defects
Published in Physical review letters (03-12-2010)“…We theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to…”
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Meissner effect probing of odd-frequency triplet pairing in superconducting spin valves
Published in Physical review. B, Condensed matter and materials physics (18-02-2014)“…Superconducting correlations which are long ranged in magnetic systems have attracted much attention due to their spin-polarization properties and potential…”
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Charge and spin currents in ferromagnetic Josephson junctions
Published in Physical review. B, Condensed matter and materials physics (16-11-2015)“…We determine, using a self-consistent method, the charge and spin currents in ballistic Josephson junctions consisting of several ferromagnetic (F) layers…”
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Spin-controlled superconductivity and tunable triplet correlations in graphene nanostructures
Published in Physical review letters (22-07-2013)“…We study graphene ferromagnet/superconductor/ferromagnet (F/S/F) nanostructures via a microscopic self-consistent Dirac Bogoliubov-de Gennes formalism. We show…”
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Coherent perfect absorption in epsilon-near-zero metamaterials
Published in Physical review. B, Condensed matter and materials physics (02-10-2012)“…In conventional materials, strong absorption usually requires that the material have either high loss or a large thickness-to-wavelength ratio (d/[lambda] >>…”
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Tunneling conductance and spin transport in clean ferromagnet/ferromagnet/superconductor heterostructures
Published in Physical review. B, Condensed matter and materials physics (28-08-2014)“…We present a transfer matrix approach that combines the Blonder-Tinkham-Klapwijk formalism and self-consistent solutions to the Bogoliubov-de Gennes equations…”
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Proximity effects and triplet correlations in ferromagnet/ferromagnet/superconductor nanostructures
Published in Physical review. B, Condensed matter and materials physics (31-07-2012)“…We report the results of a study of superconducting proximity effects in clean ferromagnet/ferromagnet/superconductor (F sub(1)F sub(2)S) heterostructures,…”
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Odd triplet pairing in clean superconductor/ferromagnet heterostructures
Published in Physical review letters (21-09-2007)“…We study triplet pairing correlations in clean ferromagnet (F)/superconductor (S) nanojunctions, via fully self-consistent solution of the Bogoliubov-de Gennes…”
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Reentrant superconducting phase in conical-ferromagnet-superconductor nanostructures
Published in Physical review letters (16-03-2012)“…We study a bilayer consisting of an ordinary superconductor and a magnet with a spiral magnetic structure of the Ho type. We use a self-consistent solution of…”
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Controlled light energy and perfect absorption in twisted bilayer graphene
Published in Optics express (18-12-2023)“…We theoretically study the components of the dynamical optical conductivity tensor and associated finite-frequency dielectric response of bilayer graphene…”
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Waveguide modes in Weyl semimetals with tilted dirac cones
Published in Optics express (09-12-2019)“…We theoretically study unattenuated electromagnetic guided wave modes in centrosymmetric Weyl semimetal layered systems. By solving Maxwell's equations for the…”
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Light polarization switching and perfect absorption in displaced and commensurate twisted bilayer graphene on an epsilon-near-zero layer
Published in Optics express (14-11-2022)Get full text
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Graphene-based extremely wide-angle tunable metamaterial absorber
Published in Scientific reports (24-08-2016)“…We investigate the absorption properties of graphene-based anisotropic metamaterial structures where the metamaterial layer possesses an electromagnetic…”
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Dynamical tuning between nearly perfect reflection, absorption, and transmission of light via graphene/dielectric structures
Published in Scientific reports (05-12-2016)“…Exerting well-defined control over the reflection ( R ), absorption ( A ), and transmission ( T ) of electromagnetic waves is a key objective in quantum…”
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Zero-energy peak and triplet correlations in nanoscale superconductor/ferromagnet/ferromagnet spin valves
Published in Physical review. B, Condensed matter and materials physics (17-07-2015)“…Using a self-consistent Bogoliubov-de Gennes approach, we theoretically study the proximity-induced density of states (DOS) in clean SFF spin valves with…”
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Near-perfect absorption in epsilon-near-zero structures with hyperbolic dispersion
Published in Optics express (24-03-2014)“…We investigate the interaction of polarized electromagnetic waves with hyperbolic metamaterial structures, whereby the in-plane permittivity component εx is…”
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Parametrically shielding electromagnetic fields by nonlinear metamaterials
Published in Physical review letters (15-02-2008)“…An analytical theory is developed for parametric interactions in metamaterial multilayer structures with simultaneous nonlinear electronic and magnetic…”
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Singlet-triplet superconducting quantum magnetometer
Published in Physical review. B, Condensed matter and materials physics (27-08-2013)“…Motivated by the recent experimental realization of a quantum interference transistor based on the superconducting proximity effect, we here demonstrate that…”
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