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Topic Area: Nanomagnetics
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Displaying records 1 to 10 of 216 records.
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1. 'Ballistic' vs. 'Diffusive' Transport in Current-Induced Magnetization Switching
Topic: Nanomagnetics
Published: 12/21/2007
Authors: N Theodoropoulou, A Sharma, W Pratt, J. Bass, Mark D Stiles, J Xiao
Abstract: We test whether current-induced magnetization switching due to spin-transfer-torque in ferromagnetic/non-magnetic/ferromagnetic (F/N/F) trilayers changes significantly when scattering within the N-metal layers is changed from ballistic to diffusive. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620018

2. 180{degree} Surface Domain Wall Magnetization Profiles: Comparisons Between Scanning Electron Microscopy with Polarization Analysis Measurements, Magneto-Optic Kerr Microscopy Measurements and Micromagnetic Models
Topic: Nanomagnetics
Published: 1/1/1990
Authors: M Scheinfein, P J Ryan, John Unguris, Daniel Thornton Pierce, Robert Celotta
Abstract: We compare measurements of magnetization profiles across a 180{degree} surface domain wall in a 0.24-{mu}m-thick of Permalloy (Ni^d81^Fe^d19^), obtained with scanning electron microscopy with polarization analysis (SEMPA) and longitudinal magneto-opt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620361

3. A New Spin on the Doppler Effect
Topic: Nanomagnetics
Published: 10/17/2008
Authors: Mark D Stiles, Robert D McMichael
Abstract: The coupling between ferromagnetism and electrical current has recently been the object of intense study because of the combination of interesting scientific developments and the potential technological impact. This coupling is mediated by spin curr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620606

4. A Numerical Method to Solve the Boltzmann Equation for a Spin Valve
Topic: Nanomagnetics
Published: 10/1/2007
Authors: J Xiao, A Zangwill, Mark D Stiles
Abstract: We present a numerical algorithm to solve the Boltzmann equation for the electron distribution function in magnetic multilayer heterostructures with non-collinear magnetizations. The solution is based on a scattering matrix formalism for layers that ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620591

5. A Review of "Polarized Electrons at Surfaces"
Topic: Nanomagnetics
Published: 1/1/1986
Author: Robert Celotta
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620262

6. A new connection between electricity and magnetism
Topic: Nanomagnetics
Published: 2/9/2009
Authors: Robert D McMichael, Mark D Stiles
Abstract: A Viewpoint on ``Universal Electromotive Force Induced by Domain Wall Motion,'' Shengyuan A. Yang, Geoffrey S. D. Beach, Carl Knutson, Di Xiao, Qian Niu, Maxim Tsoi and James L. Erskine.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901498

7. Ab Initio Studies of the Spin-Transfer Torque in Tunnel Junctions
Topic: Nanomagnetics
Published: 5/9/2008
Authors: Christian Heiliger, Mark D Stiles
Abstract: We calculate the spin-transfer torque in Fe/MgO/Fe tunnel junctions and analyze the results in comparison to all-metallic junctions. We show that the spin-transfer torque is interfacial in the ferromagnetic layer to a greater degree than in spin-valv ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620023

8. Adiabatic Domain Wall Motion and Landau-Lifshitz Damping
Topic: Nanomagnetics
Published: 1/1/2007
Authors: Mark D Stiles, W Saslow, Michael J Donahue, A Zangwill
Abstract: Recent theory and measurements of the velocity of current-driven domain walls in magnetic nanowires have re-opened the unresolved question of whether Landau-Lifshitz damping or Gilbert damping provides the more natural description of dissipative mag ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620595

9. Anatomy of Spin-Transfer Torque
Topic: Nanomagnetics
Published: 7/1/2002
Authors: Mark D Stiles, A Zangwill
Abstract: Spin-transfer torques occur in magnetic heterostructures because the transverse component of a spin current that flows from a non-magnet into a ferromagnet is absorbed at the interface. We demonstrate this fact explicitly using free electron models ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620541

10. Anisotropic damping of the magnetization dynamics in Fe, Ni and Co
Topic: Nanomagnetics
Published: 5/17/2010
Authors: Daniel Steiauf, Jonas Seib, Manfred Faehnle, Keith Gilmore, Mark D Stiles
Abstract: The Gilbert parameter alpha describing the damping of magnetization dynamics is commonly taken to be an isotropic scalar. We argue that it is a tensor, that is anisotropic, leading to a dependence of the damping on both the instantaneous direction ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903652



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