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Topic Area: Atomic Physics
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Displaying records 31 to 40 of 80 records.
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31. Magnetic switching fluctuations from sidewall oxides in MgO/FeCoB magnetic tunnel junctions
Topic: Atomic Physics
Published: 8/30/2011
Authors: Joshua M Pomeroy, J C Read
Abstract: Sharp magnetic switching distributions with coupling to magnetic sidewall oxides in FeCoB/MgO magnetic tunnel junctions (MTJs) are revealed by magneto-resistance first order reversal curve (MR-FORC) measurements. Tunneling magneto-resistance (TMR) ...

32. Multi-channel modeling of the formation of vibrationally cold polar KRb molecules.
Topic: Atomic Physics
Published: 5/14/2009
Authors: Svetlana Kotochigova, Eite Tiesinga, Paul S Julienne
Abstract: We describe the theoretical advances that influenced the experimental creation of vibrationally and translationally cold polar 40K87Rb molecules [Nature Phys. 4, 622 (2008), Science 322, 231 (2008)]. Cold molecules were created from very-weakly boun ...

33. Multi-level Spectroscopy of Two-Level Systems Coupled to a dc SQUID Phase Qubit
Topic: Atomic Physics
Published: 4/7/2010
Authors: T. A. Palomaki, S. K. Dutta, R M Lewis, A J Przybysz, B. K. Cooper, H. Kwon, J. R. Anderson, C. J. Lobb, F. C. Wellstood, Eite Tiesinga
Abstract: We report spectroscopic measurements of discrete two-level systems (TLSs) coupled to a dc SQUID phase qubit with a 16 μm2 area Al/AlOx/Al junction. Applying microwaves in the 10 GHz to 11 GHz range, we found eight avoided level crossings with sp ...

34. Near-Threshold Measurements of the Spin Dependence of Electron-Impact Ionization
Topic: Atomic Physics
Published: 1/1/1983
Authors: Michael H Kelley, W Rogers, Robert Celotta, S Mielczarek
Abstract: The spin dependence of the electron-impact ionization of Na has been measured up to 2 eV above threshold with high precision to search for the existence of characteristic oscillations which would support the Coulomb-dipole theory of threshold ioniz ...

35. Number Enhancement for Compact Laser-Cooled Atomic Samples by use of Stimulated Radiation Forces
Topic: Atomic Physics
Published: 6/2/2010
Authors: Elizabeth A Donley, Tara C. Liebisch, Eric Michael Blanshan, John E Kitching
Abstract: For cold samples of laser-cooled atoms to be most useful in emerging technologies such as compact atomic clocks and sensors, it is necessary to achieve small sample sizes while retaining a large number of cold atoms. We consider achieving large atom ...

36. Observation of a superfluid Hall effect
Topic: Atomic Physics
Published: 7/3/2012
Authors: Lindsay J. LeBlanc, Karina K. Jimenez Garcia, Ross A. Williams, Matthew C. Beeler, Abigail Reiko Perry, William D Phillips, Ian B Spielman
Abstract: Measurement techniques based upon the Hall effect are essential tools in condensed matter physics. Here, we report the first observation of a Hall effect in an ultracold gas of neutral atoms, revealed by measuring Bose-Einstein condensate's transpo ...

37. Observations of Spin Dependence in Superelastic Scattering of Polarized Electrons from Na(3P)
Topic: Atomic Physics
Published: 1/1/1986
Authors: Jabez J McClelland, Michael H Kelley, Robert Celotta

38. Optical detection of NMR ^dJ^{math minus}spectra at zero magnetic field
Topic: Atomic Physics
Published: 3/28/2009
Authors: M Ledbetter, C.W. Crawford, A Pines, D.E. Wemmer, Svenja A Knappe, John E Kitching, D Budker
Abstract: Nuclear magnetic resonance (NMR) has emerged as one of the most powerful analytical tools for elucidating molecular structure. One of the parameters typically extracted from NMR spectra which is necessary to fully understand the structure of a molec ...

39. Polarized Electrons
Topic: Atomic Physics
Published: 1/1/1982
Authors: Robert Celotta, Daniel Thornton Pierce, Michael H Kelley, W Rogers
Abstract: The electron-sodium system is an excellent prototype of non-relativistic electron scattering from a quasi-one-electron atomic target, and is tractable both experimentally and theoretically. Recently, this system has been studied in a series of sophi ...

40. Polarized-Electron--Polarized-Atom Scattering
Topic: Atomic Physics
Published: 11/23/1990
Authors: Michael H Kelley, Jabez J McClelland, Steven Ray Lorentz, Robert Celotta

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