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Physics

Electron physics

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Displaying 201 - 225 of 348

Magnetic dynamics with spin transfer torques near the Curie temperature.

September 24, 2009
Author(s)
Paul M. Haney, Mark D. Stiles
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 magnetization

Measurement of Small Birefringence and Loss in a Nonlinear Single-mode Waveguide

May 11, 2009
Author(s)
Daniel Rogers, Charles W. Clark, Christopher Richardson, Julius Goldhar
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 technique

A Bose-Einstein Condensate in a Uniform Light-Induced Vector Potential

March 30, 2009
Author(s)
Yu-Ju Lin, Robert L. Compton, Abigail R. Perry, William D. Phillips, James V. Porto, Ian B. Spielman
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 the

Physics Laboratory: 2002 Activities, Accomplishments and Recognition

February 1, 2003
Author(s)
Jonathan E. Hardis, William R. Ott, G G. Wiersma
This report summarizes the research and measurement science carried out during calendar year 2001 in the NIST Physics Laboratory. The Laboratory supports U.S. industry, government, and the scientific community by providing measurement services and research

Physics Laboratory Annual Report 2001

January 1, 2002
Author(s)
K B. Gebbie, William R. Ott
This report summarizes research projects, measurement method development, calibration and testing, and data evaluation activities that were carried out during calendar year 2001 in the NIST Physics Laboratory. These activities are in the areas of electron

Physics Laboratory Technical Activities 2000

February 1, 2001
Author(s)
K B. Gebbie, William R. Ott
This report summarizes research projects, measurement method development, calibration and testing, and data evaluation activities that were carried out during calendar year 2000 in the NIST Physics Laboratory. These activities are in the areas of electron

Physics Laboratory Technical Activities 1999

March 1, 2000
Author(s)
K B. Gebbie
This report summarizes research projects, measurement method development, calibration and testing, and data evaluation activities that were carried out during calendar year 1999 in the NIST Physics Laboratory. These activities are in the areas of electron

Physics Laboratory Technical Activities 1998

January 1, 1999
Author(s)
K B. Gebbie
This report summarizes research projects measurement method developments, calibration and testing services, and data evaluation activities that were carried out during calendar year 1998 in the NIST Physics Laboratory. These activities are in the areas of

Physics Laboratory - Technical Activities 1997

January 1, 1998
Author(s)
K B. Gebbie, William R. Ott
This report summarizes research projects, measurement method developments, calibration and testing services, and data evaluation activities that were carried out during calendar year 1997 in the NIST Physics Laboratory. These activities are in the areas of