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Displaying records 171 to 180 of 220 records.
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171. Spin Configuration and Classification of Switching Processes in Ferromagnetic Rings Down to Sub-100 nm Dimensions
Topic: Nanomagnetics
Published: 5/1/2004
Authors: C Vaz, T Monchesky, John Unguris, E Bauer, S Cherifi, S Heun, A Locatelli, L J Heyderman, Z Cui, J Bland
Abstract: The magnetic states and switching processes are investigated in Co and NiFe rings with lateral dimensions from the micrometer range down to sub-100 nm. Using non-intrusive imaging techniques we have directly observed the nanoscopic details of the mag ...

172. Spin Dependent Absorption of Electrons in a Ferromagnetic Metal
Topic: Nanomagnetics
Published: 2/9/1981
Authors: H Siegmann, Daniel Thornton Pierce, Robert Celotta
Abstract: It is found that the current collected by a ferromagnet placed in an electron beam depends on the orientation of the incident electron spin. At certain energies, only electrons with spins parallel or antiparallel to the net surface spin density caus ...

173. Spin Dependent Attenuation Lengths for Ferromagnets
Topic: Nanomagnetics
Published: 3/1/1981
Authors: R W Rendell, David R. Penn
Abstract: Spin dependent attenuation lengths (AL) as a function of the hot electron energy are calculated for Fe, Co, and Ni. If {lambda} ^u1^({lambda}^u1^) is the AL of an electron with spin parallel (antiparallel) to the majority spin direction of the ferrom ...

174. Spin Nomenclature for Semiconductors and Magnetic Metals
Topic: Nanomagnetics
Published: 6/1/2004
Authors: B Jonker, A Hanbicki, Daniel Thornton Pierce, Mark D Stiles
Abstract: The different conventions used in the semiconductor and magnetic metals communities can cause confusion in the context of spin polarization and transport in simple heterostructures. In semiconductors, terminology is based on the orientation of the ...

175. Spin Polarization in Electron Scattering from Surfaces
Topic: Nanomagnetics
Published: 1/1/1981
Authors: Daniel Thornton Pierce, Robert Celotta

176. Spin Polarization of Injected Electrons
Topic: Nanomagnetics
Published: 5/17/2002
Authors: William F. Egelhoff Jr., Mark D Stiles, David P Pappas, S Alvarado, J Gregg, J Bland, R A. Buhrman, Daniel Thornton Pierce, J Byers, M Johnson, B Jonker
Abstract: A recent paper in Science made the claim of 92% polarization for the injection spin polarized electrons from a Ni scanning tunneling microscopy (STM) tip into GaAs(110). Actually they state their result as 92% efficiency for the injection of 100% imp ...

177. Spin Polarization of Secondary Electrons in Transition Metals: Theory
Topic: Nanomagnetics
Published: 1/1/1985
Authors: David R. Penn, S Apell, S Girvin
Abstract: A theory of the spin polarization of the secondary electrons in transition metals and glasses is presented. In contrast to the secondary-electron intensity distribution, the spin polarization is shown to yield useful information about the electron-el ...

178. Spin Polarized Electron Scattering Studies of Surface Magnetism
Topic: Nanomagnetics
Published: 1/1/1983
Authors: Daniel Thornton Pierce, Robert Celotta, John Unguris

179. Spin Polarized Inverse Photoemission Studies of Surface Magnetism and Electron Structure
Topic: Nanomagnetics
Published: 1/1/1986
Authors: Daniel Thornton Pierce, A Seiler, J Pena, Robert Celotta
Abstract: Spin polarized inverse photoelectron spectroscopy (SPIPES) is shown to be a powerful new technique to study surface and near-surface electronic structure and magnetism. The process, the information obtained, and the apparatus required in a spin pola ...

180. Spin Transfer Torque and Dynamics
Topic: Nanomagnetics
Published: 11/1/2006
Authors: Mark D Stiles, J Miltat
Abstract: The currents in magnetic multilayers are spin polarized and carry enough angular momentum that they can cause magnetic reversal and induce stable precession of the magnetization in thin magnetic layers. The flow of spins is determined by the spin{ma ...

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