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Topic Area: Electron Physics
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Displaying records 31 to 40 of 100 records.
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31. Viewpoint on "Symmetry breaking in the zero-energy Landau level in bilayer graphene"
Topic: Electron Physics
Published: 2/8/2010
Author: Shaffique Adam

32. Spin-transfer dynamics in spin valves with out-of-plane magnetized CoNi free layers
Topic: Electron Physics
Published: 1/29/2010
Authors: William H Rippard, Alina M Deac, Matthew R Pufall, Justin M Shaw, Mark W Keller, Stephen E Russek, Gerrit E Bauer, Claudio Serpico
Abstract: We have measured spin-transfer-induced dynamics in magnetic nanocontact devices having a perpendicularly magnetized Co/Ni free layer and an in-plane magnetized CoFe fixed layer. The frequencies and powers of the excitations agree well with the predic ...

33. Magnetic dynamics with spin transfer torques near the Curie temperature.
Topic: Electron Physics
Published: 9/24/2009
Authors: Paul M Haney, Mark D Stiles
Abstract: In this paper we explore the combined action of large thermal fluctuations and spin transfer torques on the behavior of magnetic layers in spin valves. We find that at temperatures near Tc, spin currents can measurably change the size of the magnet ...

34. Measurement of Small Birefringence and Loss in a Nonlinear Single-mode Waveguide
Topic: Electron Physics
Published: 5/11/2009
Authors: Daniel Rogers, Charles W Clark, Christopher Richardson, Julius Goldhar
Abstract: We design and fabricate a birefringent semiconductor waveguide for application to nonlinear photonics, demonstrating that it is possible to engineer a small birefringence into such a device using multiple core layers. We also demonstrate a simple t ...

35. A Bose-Einstein Condensate in a Uniform Light-Induced Vector Potential
Topic: Electron Physics
Published: 3/30/2009
Authors: Yu-Ju Lin, Robert L. Compton, Abigail Reiko Perry, William D Phillips, James V Porto, Ian B Spielman
Abstract: We use a two-photon dressing field to create an effective vector gauge potential for Bose-condensed ^87Rb atoms in the F=1 hyperfine ground state. The dressed states in this Raman field are spin and momentum superpositions, and we adiabatically load ...

36. Alignment of Fiducial Marks in a Tomographic Tilt Series with an Unknown Rotation Axis
Topic: Electron Physics
Published: 4/1/2007
Authors: Zachary H Levine, Peter Volkovitsky, Howard Hung
Abstract: Alignment for tomography using a transmission electron microscopy frequently uses colloidal gold particles as fiducial reference marks. Typically, there is an implicit assumption that the tilt axis of the tomographic series is orthogonal to the beam ...

37. Wake Fields in the Electron Gas, Including Transverse Response
Topic: Electron Physics
Published: 12/1/2006
Authors: Eric J Cockayne, Zachary H Levine

38. Progress on Spin Detectors and Spin-polarized Electron Scattering from Na at NIST
Topic: Electron Physics
Published: 1/1/1990
Author: Jabez J McClelland
Abstract: We provide a simple explanation, based on an effective field, for the precession damping rate due to the spin-orbit interaction. Previous effective field treatments of spin-orbit damping include only variations of the state energies with respect to ...

39. Use of Thorium as a Target in Electron Spin Analyzers
Topic: Electron Physics
Published: 4/1/1989
Authors: Jabez J McClelland, M Scheinfein, Daniel Thornton Pierce
Abstract: Measurements of the effective Sherman function have been carried out for 10-100-keV spin-polarized electrons scattering from a thick thorium target in a retarding Mott analyzer. At 20 and 100 keV the dependence on the maximum energy loss accepted by ...

40. Increased Sherman Function in Electron Spin Analyzers Using a Bulk Thorium Target
Topic: Electron Physics
Published: 1/1/1989
Authors: Jabez J McClelland, M Scheinfein, Daniel Thornton Pierce

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