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Displaying records 51 to 60 of 282 records.
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51. Head and Media Challenges for 3 Tb/in^u2^ Microwave Assisted Magnetic Recording
Topic: Physics
Published: 2/3/2014
Authors: Thomas J Silva, Justin M Shaw, Hans Toya Nembach, Mike Mallary, Kumar Srinivasan, Gerado Bertero, Dan Wolf, Christian Kaiser, Michael Chaplin, Mahendra Pakala, Leng Qunwen, Yiming Wang, Carl Elliot, Lui Francis
Abstract: A specific design for Microwave Assisted Magnetic Recording (MAMR) at about 3Tb/in^u2^ (0.47 Tb/cm^u2^ or 4.7 Pb/m^u2^) is discussed in detail to highlight the challenges of MAMR and to contrast its requirements with conventional Perpendicular Magnet ...

52. Time Measurement
Topic: Physics
Published: 2/3/2014
Author: Michael A Lombardi
Abstract: An overview of time metrology, with emphasis on time interval measurements, and time synchronization. It covers the evolution of clocks and timekeeping, time scales, the fundamentals of time measurement, and the various time transfer technique used ...

53. Quantum teleportation from a telecom-wavelength photon to a solid-state quantum memory
Topic: Physics
Published: 1/28/2014
Authors: Felix Bussieres, Christoph Clausen, Alexey Tiranov, Boris Korzh, Varun Boehm Verma, Sae Woo Nam, Francesco Marsili, Alban Ferrier, Harald Hermann, Christine Silberhorn, Wolfgang Sohler, Mikael Afzelius, Nicolas Gisin
Abstract: In quantum teleportation [1], the state of a single quantum system is disembodied into classical information and purely quantum correlations, to be later reconstructed onto a second system that has never directly interacted with the first one. ...

54. Comment on ŠDetection of Microwave Spin Pumping Using the Inverse Spin Hall EffectŠ
Topic: Physics
Published: 1/27/2014
Authors: Thomas J Silva, Mathias A. Weiler, Hans Toya Nembach, Justin M Shaw
Abstract: In a recent Letter, Hahn et al. reported on the detection of an ac voltage in a yttrium iron garnet (YIG)/platinum (Pt) bilayer under the condition of parametrically excited resonance. The authors observe an ac voltage at the frequency of the magneti ...

55. Absorptions Between 3000 and 5500 cm-1 of cyclic O4+ and O4- Trapped in Solid Neon
Topic: Physics
Published: 12/19/2013
Authors: Marilyn E Jacox, Warren Elwin Thompson
Abstract: Recently, gas-phase absorptions in the 3000 to 4300 cm-1 spectral region have been assigned to combination bands built on (v1 + v5) of ground-state cyc-O4+. Other gas-phase experiments identified an electronic transition of cyc-O4- complexed with an ...

56. Measuring the Neutron Lifetime with Magnetically Trapped Ultracold Neutrons
Topic: Physics
Published: 12/16/2013
Author: Hans P Mumm
Abstract: We describe an experiment to measure the neutron lifetime using a technique with a set of systematic uncertainties largely different than those of previous measurements. In this approach, UCN are produced by inelastic scattering of cold (0.89 nm) ne ...

57. Standardization of 237Np
Topic: Physics
Published: 12/4/2013
Authors: Lizbeth Laureano-Perez, Ryan P Fitzgerald, Ronald Colle
Abstract: The standardization of 237Np was investigated. The certified massic activity for 237Np was obtained by 4 liquid scintillation (LS) counting with correction for the 233Pa daughter using the CIEMAT/NIST efficiency tracing method ...

58. Absolute line intensities for oxirane from 1420 to 1560 cm-1
Topic: Physics
Published: 11/15/2013
Authors: F Kwabia Tchana, M. Ngom, Agnes Perrin, Jean-Marie Flaud, Walter Joseph Lafferty, S. A. Ndiaye, El. A. Ngum
Abstract: Absolute individual line intensities of numerous transitions of the fundamental ν2 and ν10 bands of oxirane (ethylene oxide, c-C2H4O) have been measured in the 1420-1560 cm-1 region using seven high- resolution Fourier transform spectra ...

59. Absolute line intensities for the nu3 band of oxirane (C2H4O)
Topic: Physics
Published: 11/15/2013
Authors: Walter Joseph Lafferty, Jean-Marie Flaud, Fridolin Kwabia, A. Perrin, M. Ngom
Abstract: Seven Fourier transform spectra of the ν3 band of oxirane (ethylene oxide) have been recorded with different pressures and used to derive individual line intensities. These line intensities were satisfactorily fit leading to accurate transition ...

60. Electron Energy Loss Function of Silicene and Germanene Multilayers on Silver
Topic: Physics
Published: 11/4/2013
Authors: Anna Lauren E. (Lauren) Rast, Vinod K Tewary
Abstract: We calculate electron energy loss spectra (EELS) for composite plasmonic structures based on silicene and germanene. A continued-fraction expression for the effective dielectric function is used to perform multiscale calculations of EELS for both ...

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