Results 61 to 70 of about 204,662 (249)

Spin transport of electrons through quantum wires with spatially-modulated strength of the Rashba spin-orbit interaction

open access: yes, 2004
We study ballistic transport of spin-polarized electrons through quantum wires in which the strength of the Rashba spin-orbit interaction (SOI) is spatially modulated.
A. Fert   +37 more
core   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar   +11 more
wiley   +1 more source

Ballistic spin transport through electronic stub tuners: spin precession, selection, and square-wave transmission

open access: yes, 2002
Ballistic spin transport is studied through electronic tuners with double stubs attached to them. The spins precess due to the spin-orbit interaction. Injected polarized spins can exit the structure polarized in the opposite direction.
Peeters, F. M.   +2 more
core   +1 more source

14.6-GHz LiNbO/sub 3/ microdisk photonic self-homodyne RF receiver [PDF]

open access: yes, 2006
Nonlinear optical modulation combined with simultaneous photonic and RF resonance in an LiNbO/sub 3/ microdisk modulator is used to create a self-homodyne photonic RF receiver.
Hossein-Zadeh, Mani, Levi, Anthony F. J.
core   +1 more source

Imaging of Biphoton States: Fundamentals and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Task-dependent contribution to edge-based versus region-based texture perception

open access: yesScientific Reports
Texture segregation studies indicate that some types of textures are processed by edge-based and others by region-based mechanisms. However, studies employing nominally edge-based textures have found evidence for region-based processing mechanisms when ...
Elena Gheorghiu   +2 more
doaj   +1 more source

Deep Electrical Modulation of Terahertz Wave Based on Hybrid Metamaterial-Dielectric-Graphene Structure

open access: yesApplied Sciences, 2019
A terahertz modulation structure based on hybrid metamaterial and graphene is proposed and demonstrated in this work. The metamaterial with a square slit ring array excites terahertz resonance in the slits and enhances the interaction between the ...
Liangping Xia   +7 more
doaj   +1 more source

Square-wave modulation of the Pound frequency stabilizer [PDF]

open access: yes, 1947
"June 27, 1947."Bibliography: p. 20.Army Signal Corps Contract No.

core  

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Compositional uniformity, domain patterning and the mechanism underlying nano-chessboard arrays

open access: yes, 2012
We propose that systems exhibiting compositional patterning at the nanoscale, so far assumed to be due to some kind of ordered phase segregation, can be understood instead in terms of coherent, single phase ordering of minority motifs, caused by some ...
Bourgeois, L.   +5 more
core   +1 more source

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