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Topic Area: Nanomagnetics

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1. Current induced torques and interfacial spin-orbit coupling: semiclassical modeling
Topic: Nanomagnetics
Published: 5/7/2013
Authors: Paul M Haney, Hyun-Woo Lee, Kyung Jin Lee, Aurelien Manchon, Mark D Stiles
Abstract: Currents passing through bilayer nanowires with a ferromagnetic layer and a non-magnetic layer with strong spin-orbit coupling, excite magnetic dynamics which cannot be explained with standard models. The dynamics appear to require two torques which ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=913077

2. Interfacial Coupling in Multiferroic/Ferromagnet Heterostructures
Topic: Nanomagnetics
Published: 4/30/2013
Authors: M. Trassin, J. D. Clarkson, Samuel R Bowden, j. Liu, J. T. Heron, R. J. Paull, Elke Arenholz, Daniel Thornton Pierce, John Unguris
Abstract: We report local probe investigations of the magnetic interaction between BiFeO3 films and a ferromagnetic Co0.9Fe0.1 layer. Within the constraints of intralayer exchange coupling in the Co0.9Fe0.1, the multiferroic imprint in the ferromagnet results ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=913454

3. Spectroscopy and imaging of edge modes in Permalloy nanodisks
Topic: Nanomagnetics
Published: 1/3/2013
Authors: Feng Guo, Lyubov Belova, Robert D McMichael
Abstract: This paper reports spectroscopy and imaging of spin wave modes using ferromagnetic resonance force microscopy (FMRFM) in Permalloy nano-disks with disk diameters that range from 100 nm to 750 nm. The ferromagnetic resonance spectra distinguish multip ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911716

4. Two dimensional spectroscopic imaging of individual ferromagnetic nanostripes
Topic: Nanomagnetics
Published: 11/6/2012
Authors: Han-Jong H. Chia, Feng Guo, Lyubov Belova, Robert D McMichael
Abstract: We use ferromagnetic resonance force microscopy (FMRFM) to spectroscopically image the edge modes in individual 700 and 400 nm wide Permalloy stripes with a spatial resolution on the order of 200 nm. The imaging clearly identies some resonances as ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911361

5. Spectroscopic defect imaging in magnetic nanostructure arrays
Topic: Nanomagnetics
Published: 7/25/2012
Authors: Han-Jong H. Chia, Feng Guo, Lyubov Belova, Robert D McMichael
Abstract: We report a demonstration of spectroscopic defect imaging in an array of ferromagnetic structures using ferromagnetic resonance force microscopy (FMRFM). The arrray of 200 nm diameter circular dots includes a single oval-shaped “defect.” The techni ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=910697

6. Nanoscale spin wave localization using ferromagnetic resonance force microscopy
Topic: Nanomagnetics
Published: 2/24/2012
Authors: Han-Jong H. Chia, Feng Guo, Lyubov Belova, Robert D McMichael
Abstract: We utilize ferromagnetic resonance force microscopy (FMRFM) to generate and detect multiple localized spin wave modes with spatial dimensions less than 100 nm in ferromagnetic thin films. Localized spin waves are a potentially powerful tool for ima ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=909301

7. Formation and structure of 360 and 540 degree domain walls in thin magnetic stripes
Topic: Nanomagnetics
Published: 2/10/2012
Authors: Youngman Jang, Samuel R Bowden, Mark Mascaro, John Unguris, Caroline Ross
Abstract: 360˚, 540˚ and other complex transverse domain walls have been created in narrow Co wires connected to injection pads by cycling a magnetic field perpendicular to the wire length. The composite walls, formed by impingement of 180˚ tran ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=910019

8. First-Principles Calculation of the Non-Adiabatic Spin Transfer Torque in Ni and Fe
Topic: Nanomagnetics
Published: 12/16/2011
Authors: Keith Gilmore, Ion Garate, Allan H. MacDonald, Mark D Stiles
Abstract: The magnetization dynamics of a ferromagnet subjected to an electrical current are given by an extension of the Landau-Lifshitz-Gilbert equation that contains two additional terms, the adiabatic and non-adiabatic spin-transfer torques. First-prin ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=909728

9. TaOx Memristive Devices with Ferromagnetic Electrodes
Topic: Nanomagnetics
Published: 12/7/2011
Authors: Hyuk-Jae Jang, Pragya Rasmi Shrestha, Oleg A Kirillov, Helmut Baumgart, Kin P Cheung, Oana Jurchescu, Curt A Richter
http://nist.gov/manuscript-publication-search.cfm?pub_id=910359

10. Magneto-optical observation of four-wave scattering in a 15 nm Ni^d81^Fe^d19^ film during large angle magnetization precession
Topic: Nanomagnetics
Published: 11/14/2011
Authors: Hans Toya Nembach, Karen Livesey, Michael Kostylev, Patrica Martin-Pimentel, Sebastian Hermsdoerfer, Britta Leven, Juergen Fassbender, Burkard Hillebrands
Abstract: Large angle magnetization precession induced by a short pulsed magnetic field in a 15 nm thick Ni^d81^Fe^d19^ film is observed using a time-resolved magneto-optical Kerr effect technique with sensitivity to all three components of the magnetization ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=907497