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Topic Area: Nanomagnetics
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Displaying records 181 to 190 of 219 records.
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181. Spin Transfer Torques
Topic: Nanomagnetics
Published: 4/1/2008
Authors: D Ralph, Mark D Stiles
Abstract: This tutorial article is designed for beginning graduate students who are interested in the physics of spin transfer torques in magnetic devices. We provide an elementary discussion of the mechanism of spin transfer torque, and review the theoretical ...

182. Spin Transfer Torques by Point-Contact Spin injection
Topic: Nanomagnetics
Published: 8/24/2009
Authors: Tingyong Chen, Yi Ji, S X Huang, C L Chien, Mark D Stiles
Abstract: Spin-transfer torques (STT) provide a new mechanism to alter the magnetic configuration in magnetic heterostructures, a feat previously only achieved by an external magnetic field. A current flowing perpendicular through a noncollinear magnetic spin ...

183. Spin Transport for Spin Diffusion Lengths Comparable to Mean Free Paths
Topic: Nanomagnetics
Published: 12/15/2005
Authors: David R. Penn, Mark D Stiles
Abstract: In perpendicular-transport structures with magnetic and non-magnetic layers, there is a resistance associated with changes in the value of current polarization throughout the structure. Starting from a Boltzmann equation Valet and Fert derived macros ...

184. Spin and Energy Analyzed Secondary Electron Emission from a Ferromagnet
Topic: Nanomagnetics
Published: 7/5/1982
Authors: John Unguris, Daniel Thornton Pierce, A Galejs, Robert Celotta
Abstract: Measurements are presented of the energy dependence of the spin polarization of low-energy (0.5-25 eV) secondary electrons when a 500-eV primary beam is incident on an iron-based ferromagnetic glass. The polarization of the lowest-energy electrons i ...

185. Spin-Dependent Elastic Scattering of Electrons from a Ferromagnetic Glass Ni^d40^Fe^d40^ B^d20^
Topic: Nanomagnetics
Published: 9/1/1982
Authors: Daniel Thornton Pierce, Robert Celotta, John Unguris, H Siegmann
Abstract: The dependence of the elastic scattering of electrons on the relative direction of the spin of the incident electron with respect to the magnetization of the ferromagnetic glass Ni^d40^Fe^d40^ B^d20^ was measured at various energies, angles, and temp ...

186. Spin-Dependent Interface Transmission and Reflection in Magnetic Multilayers
Topic: Nanomagnetics
Published: 1/1/1996
Author: Mark D Stiles
Abstract: First-principles calculations of transmission and reflection from Ag/Fe, Au/Fe, Cu/Co, and Cu/Ni interfaces show very strong spin dependence that differs signifcantly from expectations based on free electron approximations. The results can be used t ...

187. Spin-Orbit Precession Damping in Transition Metal Ferromagnets
Topic: Nanomagnetics
Published: 1/1/2007
Authors: Keith Gilmore, Y Idzerda, Mark D Stiles
Abstract: We provide a simple explanation, based on an effective field, for the precession damping rate due to the spin-orbit interaction. Previous effective field treatments of spin-orbit damping include only variations of the state energies with respect to ...

188. Spin-Other-Orbit Interaction and Magnetocrystalline Anisotropy
Topic: Nanomagnetics
Published: 8/23/2001
Authors: Mark D Stiles, S Halilov, R Hyman, A Zangwill
Abstract: We report the effect of the two-body, spin-other-orbit interaction on the magnetocrystalline anisotropy energy of the 3d transition metals. The relevant energy differences were computed for bcc Fe, fcc Ni, and hcp Co using the linearized augmented p ...

189. Spin-Polarized Electron Microscopy
Topic: Nanomagnetics
Published: 1/1/1988
Author: Daniel Thornton Pierce
Abstract: A current scientific challenge with many ramifications for magnetic technology is to image magnetic microstructure with the highest possible spatial resolution in order to observe magnetic domains or even spin configurations within a domain wall. Ult ...

190. Spin-Polarized Electron Scattering Studies of the Ferromagnetic Glass, Fe^d81.5^B^d14.5^Si^d4^
Topic: Nanomagnetics
Published: 1/1/1984
Authors: John Unguris, Daniel Thornton Pierce, Robert Celotta
Abstract: Low-energy [(20{math minus}500)-eV] spin-polarized electrons were used to probe the magnetic surface properties of the ferromagnetic metallic glass Fe^d81.5^B^d14.5^Si^d4^. The spin-independent intensity and the spin-dependent asymmetry of the elast ...

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