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Displaying records 31 to 40 of 44 records.
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31. Spin transport parameters in metallic multilayers determined by ferromagnetic resonance measurements of spin-pumping
Topic: Condensed Matter Physics
Published: 4/19/2013
Authors: Carl T. Boone, Hans Toya Nembach, Justin M Shaw, Thomas J Silva
Abstract: We measured spin-transport in nonferromagnetic (NM) metallic multilayers from the contribution to damping due to spin pumping from a ferromagnetic Co^d90^Fe^d10^ thin film. The multilayer stack consisted of NM^d1^/NM^d2^/Co^d90^Fe^d10^(2 nm)/NM^d2^/N ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912988

32. Spin-Transfer Nano-Oscillators
Topic: Condensed Matter Physics
Published: 1/7/2013
Authors: Stephen E Russek, Ranko R. Heindl, Thomas Cecil, William H Rippard
Abstract: Spin transfer nano-oscillators are small multilayer magnetic devices that undergo microwave oscillations and output a microwave voltage when a bias current is applied. The oscillation frequency is tunable, over a range of 0.5 GHz to 225 GHz, by vary ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902217

33. Spin-scattering rates in metallic thin films measured by ferromagnetic resonance damping enhanced by spin-pumping
Topic: Condensed Matter Physics
Published: 6/12/2015
Authors: Carl T. Boone, Justin M Shaw, Hans Toya Nembach, Thomas J Silva
Abstract: We determined the spin-transport properties of Pd and Pt thin films by measuring the increase in ferromagnetic resonance damping due to spin-pumping in ferromagnetic (FM)-nonferromagnetic metal (NM) multilayers with varying NM thicknesses. The increa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916038

34. Spin-transfer dynamics in spin valves with out-of-plane magnetized CoNi free layers
Topic: Condensed Matter 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 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903981

35. Switching Distributions for Perpendicular Spin Torque Devices within the Macrospin Approximation
Topic: Condensed Matter Physics
Published: 11/30/2012
Authors: William H. Butler, William H Rippard, Stephen E Russek, Ranko R. Heindl
Abstract: We model "soft" error rates for writing (WSER) and for reading (RSER) for spin-torque memory devices that have a free layer with easy axis perpendicular to the film plane by solving the Fokker-Planck equation for the probability distribution of the a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908646

36. Temperature-Dependent Behavior of PbSc^d1/2^Nb^d1/2^O^d3^ From First Principles
Topic: Condensed Matter Physics
Published: 7/1/2001
Authors: Eric J Cockayne, Benjamin P Burton, L Bellaiche
Abstract: We study the ferroelectric phase transition in PbSc1/2Nb1/2O3 (PSN) using a first-principles effective Hamiltonian approach. Results for PSN with NaCl-type ordering of Sc and Nb on the B sites shows that a Pb-centered effective Hamiltonian is approp ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850498

37. The Cooper Pair Transistor
Topic: Condensed Matter Physics
Published: 9/17/2010
Author: Jose Alberto Aumentado
Abstract: The Cooper pair transistor (CPT) is a superconducting electrometer that has applications in quantum information as well as fundamental superconductivity studies. Since it operates in a near-dissipationless mode, it has potential as a minimally inva ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902021

38. The-Final-State Symmetry of Na 1s Core-shell Excitons in NaCl and NaF
Topic: Condensed Matter Physics
Published: 7/8/2009
Authors: Eric L Shirley, K. P. Nagle, G T Seidler, T. T. Fister, J. A. Bradley, F. C. Brown
Abstract: We report measurements of the Na 1s contribution to the nonresonant inelastic x-ray scattering (NRIXS) from NaCl and NaF. Prior x-ray absorption studies have observed two pre-edge excitons in both materials. The momentum transfer-dependence (q-depe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901581

39. Thermo-Magneto-Electrical Measurement Platform
Topic: Condensed Matter Physics
Published: 10/19/2010
Authors: Kurt Pernstich, Curt A Richter, David J Gundlach
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907222

40. Tunable Spin Qubit Coupling Mediated by a Multi-Electron Quantum Dot
Topic: Condensed Matter Physics
Published: 6/4/2015
Authors: Vanita Srinivasa, Haitan Xu, Jacob M Taylor
Abstract: We present an approach for entangling electron spin qubits localized on spatially separated impurity atoms or quantum dots via a multi-electron, two-level quantum dot. The effective exchange interaction mediated by the dot can be understood as the si ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915156



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