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You searched on: Topic Area: Nanomagnetics Sorted by: title

Displaying records 1 to 10 of 30 records.
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1. Comment on ŠDetection of Microwave Spin Pumping Using the Inverse Spin Hall EffectŠ
Topic: Nanomagnetics
Published: 1/27/2014
Authors: Thomas J Silva, Mathias A. Weiler, Hans Toya Nembach, Justin M Shaw
Abstract: In a recent Letter, Hahn et al. reported on the detection of an ac voltage in a yttrium iron garnet (YIG)/platinum (Pt) bilayer under the condition of parametrically excited resonance. The authors observe an ac voltage at the frequency of the magneti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915355

2. Continuous-Film vs. Device-Level Ferromagnetic Resonance in Magnetic Tunnel Junction Thin Films
Topic: Nanomagnetics
Published: 2/25/2013
Authors: Eric Raymond Evarts, Matthew R Pufall, William H Rippard
Abstract: We quantitatively compare film-level ferromagnetic resonance (FMR) measurements to device-level FMR measurements on magnetic tunnel junction (MTJ) thin films with in-plane magnetization using both thermal FMR (T-FMR) and field-swept spin torque FMR m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912806

3. 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 H. 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

4. 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

5. Ferromagnetic resonance measurement using stroboscopic magneto optical Kerr effect
Topic: Nanomagnetics
Published: 6/7/2015
Authors: Takahiro Moriyama, Seungha Yoon, Robert D McMichael
Abstract: We have developed a novel ferromagnetic resonance measurement technique using the magneto optical Kerr effect. The measurement technique uses microwave-frequency, intensity-modulated light to stroboscopically measure the Kerr angle due to the magneti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=918253

6. Field-driven sense elements for chirality-dependent domain wall detection and storage
Topic: Nanomagnetics
Published: 12/10/2013
Authors: Samuel R. Bowden, John Unguris
Abstract: A method for locally sensing and storing data of transverse domain wall chirality in planar nanowire logic and memory systems is presented. Patterned elements, in close proximity to the nanowires, respond to the asymmetry in the stray field from the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914540

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://www.nist.gov/manuscript-publication-search.cfm?pub_id=910019

8. Head and Media Challenges for 3 Tb/in^u2^ Microwave Assisted Magnetic Recording
Topic: Nanomagnetics
Published: 2/3/2014
Authors: Thomas J Silva, Justin M Shaw, Hans Toya Nembach, Mike Mallary, Kumar Srinivasan, Gerado Bertero, Dan Wolf, Christian Kaiser, Michael Chaplin, Mahendra Pakala, Leng Qunwen, Yiming Wang, Carl Elliot, Lui Francis
Abstract: A specific design for Microwave Assisted Magnetic Recording (MAMR) at about 3Tb/in^u2^ (0.47 Tb/cm^u2^ or 4.7 Pb/m^u2^) is discussed in detail to highlight the challenges of MAMR and to contrast its requirements with conventional Perpendicular Magnet ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914220

9. 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

10. Linear relation between Heisenberg exchange and interfacial Dzyaloshinskii‹Moriya interaction in metal films
Topic: Nanomagnetics
Published: 8/3/2015
Authors: Hans Toya Nembach, Justin M Shaw, Mathias A. Weiler, Emilie Marie Jue, Thomas J Silva
Abstract: Proposals for novel spin-orbitronic logic and memory devices are often dependent on assumptions as to how materials with large spin-orbit and ferromagnets interact when in contact. Such interactions give rise to a host of novel phenomena, such as ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917482



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