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You searched on: Topic Area: Nanomagnetics

Displaying records 11 to 17.
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11. 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://www.nist.gov/manuscript-publication-search.cfm?pub_id=910019

12. 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://www.nist.gov/manuscript-publication-search.cfm?pub_id=907497

13. Effects of shape distortions and imperfections on mode frequencies and collective linewidths in nanomagnets
Topic: Nanomagnetics
Published: 3/28/2011
Authors: Hans Toya Nembach, Justin M Shaw, Thomas J Silva, Ward L Johnson, Sudook A Kim, Robert D McMichael, Pavel Kabos
Abstract: We used Brillouin light scattering to show that shape distortions in Ni80Fe20 nanoelements can have a dramatic effect on the measured linewidth of certain modes. By intentionally introducing an amount of ,egg-likeŠ shape distortion to an ideal ellip ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907044

14. Roughness induced magnetic inhomogeneity in Co/Ni multilayers: Ferromagnetic resonance and switching properties in nanostructures.
Topic: Nanomagnetics
Published: 11/10/2010
Authors: Justin M Shaw, Hans Toya Nembach, Thomas J Silva
Abstract: We report on the effect roughness has on the magnetic properties of Co/Ni multilayers with perpendicular anisotropy. We can systematically vary the surface roughness and grain size by the variation in the Cu seed layer thickness. The roughness has ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906064

15. Intrinsic defects in perpendicularly magnetized multilayer thin films and nanostructures
Topic: Nanomagnetics
Published: 10/26/2010
Authors: Justin M Shaw, Miles Olsen, June Waiyin Lau, Michael L Schneider, Thomas J Silva, Olav Hellwig, Elizabeth Dobisz, Bruce D Terris
Abstract: Intrinsic magnetic defects in perpendicularly magnetized nanostructures reduce the predictability of device and developing recording technologies. In addition to a distribution of local anisotropy fields, we show that such defects also exhibit varia ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906140

16. Effect of microstructure on magnetic properties and anisotropy distributions in Co/Pd thin films and nanostructures
Topic: Nanomagnetics
Published: 11/19/2009
Authors: Justin M Shaw, Hans Toya Nembach, Thomas J Silva, Stephen E Russek, Roy Howard Geiss
Abstract: The structure of Co/Pd multilayers has a strong effect on the localized anisotropy distribution within a film and the resulting switching properties of nanostructures fabricated from identical material. By varying the underlying seed layer, the micr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903594

17. Magnetic Depth Profiling Co/Cu Multilayers to Investigate Magnetoresistance
Topic: Nanomagnetics
Published: 5/1/2000
Authors: John Unguris, D Tulchinsky, Michael H Kelley, Julie A. Borchers, Joseph A Dura, Charles F. Majkrzak, S. Y. Hsu, R Loloee, W Pratt, J Bass
Abstract: The magnetic microstructure responsible for the metastable high resistance state of weakly coupled, as-prepared [Co(6nm)/Cu(6nm)]^d20 ^multilayer was analyzed using polarized neutron reflectivity (PNR) and scanning electron microscopy with polarizati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620521



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