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You searched on: Topic Area: Nanophysics

Displaying records 1 to 10 of 15 records.
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1. Radiative damping in wave guide based FMR measured via analysis of perpendicular standing spin waves in sputtered Permalloy films
Topic: Nanophysics
Published: 11/17/2015
Authors: Thomas J Silva, Justin M Shaw, Hans Toya Nembach, Mathias Weiler, Martin Schoen
Abstract: The damping α of the spinwave resonances in 75 nm, 120 nm, and 200 nm -thick Permalloy films is measured via vector-network- analyzer ferromagnetic-resonance (VNA-FMR). Inductive coupling between the sample and the waveguide leads to an addition ...

2. Temperature-dependent structure of Tb-doped magnetite nanoparticles
Topic: Nanophysics
Published: 2/13/2015
Authors: Katherine P. Rice, Stephen E Russek, Roy H. Geiss, Justin M Shaw, Robert J. Usselman, Eric Raymond Evarts, Thomas J Silva, Hans Toya Nembach, Elke Arenholz, Yves U. Idzerda
Abstract: High quality 5 nm cubic Tb-doped magnetite nanoparticles have been synthesized by a modified wet-chemical method to investigate tailoring of magnetic properties for imaging and biomedical applications. We show that the Tb is incorporated into the oct ...

3. Phase-Sensitive Detection of Spin Pumping via the ac Inverse Spin Hall Effect
Topic: Nanophysics
Published: 10/6/2014
Authors: Thomas J Silva, Justin M Shaw, Hans Toya Nembach, Mathias A. Weiler
Abstract: Sources of pure spin currents are a fundamental building block of spintronic devices. In ferromagnet/normal metal heterostructures, spin currents are generated at ferromagnetic resonance. This is known as spin pumping, where spin currents of both dc ...

4. Friction imprint effect in mechanically cleaved BaTiO3 (001)
Topic: Nanophysics
Published: 9/28/2014
Authors: Christian J Long, Daniel Ebeling, Santiago D. Solares, Rachel J. Cannara

5. Response of block copolymer thin-film morphology to line-width roughness on a chemoepitaxial template
Topic: Nanophysics
Published: 7/22/2014
Authors: Paul N Patrone, Gregg M. Gallatin

6. Strong Casimir force reduction by metallic surface nanostructuring
Topic: Nanophysics
Published: 9/27/2013
Authors: Francesco Intravaia, Stefan T. Koev, Il Woong Jung, Albert A. Talin, Paul S Davids, Ricardo Decca, Vladimir A Aksyuk, Diego A. R. Dalvit, Daniel Lopez
Abstract: The Casimir force is a quantum-mechanical interaction arising from vacuum fluctuations of the electromagnetic (EM) field and is technologically significant in micro- and nanomechanical systems. Despite rapid progress in nanophotonics, the goal of e ...

7. Studies of photoconductivity and FET behavior in examining drift mobility, surface depletion, and transient effects in Si-doped GaN nanowires examined in vacuum and air
Topic: Nanophysics
Published: 5/3/2013
Authors: Norman A Sanford, Lawrence H Robins, Paul T Blanchard, K. Soria, B. Klein, Kristine A Bertness, John B. Schlager, Aric Warner Sanders
Abstract: Variable intensity photoconductivity (PC) performed under vacuum at 325 nm was used to estimate drift mobility and negative surface charge density sigma for c-axis oriented Si-doped GaN nanowires (NWs). In this approach we assumed that sigma was res ...

8. Silicon Micromachines for Fun and Profit
Topic: Nanophysics
Published: 12/12/2012
Authors: David Bishop, Flavio Pardo, Cris Bolle, Randy Giles, Vladimir A Aksyuk
Abstract: Over the last decade or so a group of us, while working at Bell Labs, have been able to develop a large number of silicon micromachines for a wide range of applications. In this article, which is part of a special volume to celebrate the career of ...

9. Effect of elastic deformation on frictional properties of few-layer graphene
Topic: Nanophysics
Published: 1/9/2012
Authors: Alexander Y Smolyanitsky, Jason Philip Killgore, Vinod K Tewary
Abstract: We describe the results of Brownian dynamics (BD) simulations of an AFM tip scanned on locally suspended few-layer graphene. The effects of surface compliance and sample relaxation are directly related to the observed friction force. We demonstrate t ...

10. Enhanced coupling between light and surface plasmons by nanostructured Fabry-Pérot resonator
Topic: Nanophysics
Published: 9/26/2011
Authors: Brian S. Dennis, Vladimir A Aksyuk, Michael Haftel, Stefan T. Koev, Girsh Blumberg
Abstract: It is recognized that surface plasmons (SPs),which can be present on particulate, smooth, or corrugated metallic surfaces, have enormous potential in the fields of novel nano-optical and opto-electronic devices, as well as in spectroscopic, biologic ...

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