Results 141 to 150 of about 618,172 (384)

Magnetic S-parameter [PDF]

Physical review letters, 2010
We propose a direct test of the existence of gauge duals for nonsupersymmetric asymptotically free gauge theories developing an infrared fixed point by computing the S-parameter in the electric and dual magnetic description. In particular we show that at the lower bound of the conformal window the magnetic S-parameter, i.e.
openaire   +5 more sources

Realization of Complex‐Shaped Magnetic Nanotubes with 3D Printing and Electrodeposition

Advanced Functional Materials, EarlyView.
Complex‐shaped magnetic nanotubes were fabricated by coating three‐dimensional nanoscaffolds fabricated with focused electron beam induced deposition with a magnetic coating via electrodeposition. X‐ray magnetic microscopy and simulations revealed an azimuthal magnetic configuration within the nanotubes and pinning of domain walls at curved vertices ...
Claudia Fernández‐González, Pamela Morales‐Fernández, Luke Alexander Turnbull, Claas Abert, Dieter Suess, Michael Foerster, Miguel Á. Niño, Pawel Nita, Anna Mandziak, Simone Finizio, Nuria Bagués, Eva Pereiro, Amalio Fernández‐Pacheco, Lucas Pérez, Sandra Ruiz‐Gómez, Claire Donnelly   +15 more
wiley   +1 more source

A Theoretical Study of the Effects of Co-Doping Ions at K and Nb Sites on the Properties of KNbO₃ Nanoparticles

Nanomaterials
Using a microscopic model and Green’s function theory, we have investigated the co-doping effect on ferroelectric KNbO3 nanoparticles. Let us emphasize that while the doping with transition metal ions at the Nb site leads an increase in the ...
Angel T. Apostolov, Iliana N. Apostolova, Julia M. Wesselinowa   +2 more
doaj   +1 more source

The inverse thermal spin-orbit torque and the relation of the Dzyaloshinskii-Moriya interaction to ground-state energy currents

, 2016
Using the Kubo linear-response formalism we derive expressions to calculate the heat current generated by magnetization dynamics in magnets with broken inversion symmetry and spin-orbit interaction (SOI).
Blügel, Stefan, Freimuth, Frank, Mokrousov, Yuriy   +2 more
core   +1 more source

Soft Magnetic Artificial Muscles with High Work Density and Actuation Strain via Dual Cross‐Linking Design

Advanced Functional Materials, EarlyView.
A high‐performance magnetic composite actuator that integrates covalent and reversible physical cross‐links within a stiffness‐tunable polymer matrix embedded with functionalized magnetic particles is presented. The actuator exhibits programmable magnetic responsiveness, a stiffness switching ratio of 1.37 × 103, stretchability up to 1274%, large ...
Somi Kim, Sang‐Woo Lee, Hyukjoo Kwon, Soyun Hong, Gwonmin Kim, Salah M. Tawfik, Hyung Wook Park, Hoon Eui Jeong   +7 more
wiley   +1 more source

Magnetization reversal through synchronization with a microwave

, 2006
Based on the Landau-Lifshitz-Gilbert equation, it can be shown that a circularly-polarized microwave can reverse the magnetization of a Stoner particle through synchronization. In comparison with magnetization reversal induced by a static magnetic field,
L. Landau, T. L. Gilbert, X. R. Wang, Z. Z. Sun   +3 more
core   +2 more sources

Magnetic Unclonable Functions Leveraging Remanence and Anhysteretic States

Advanced Functional Materials, EarlyView.
A micrometric array of magnetic pillars provides a stable and unclonable hardware for generating cryptographic keys. From a single device, the ability is demonstrated to produce a 470‐bit key while also offering a reconfigurable mode of operation.
Alessandro Magni, Gabriele Barrera, Federica Celegato, Francesco Riboli, Diederik S. Wiersma, Sara Nocentini, Paola Tiberto   +6 more
wiley   +1 more source

Improving the Magnetic Properties Co2FeSi Heusler Compound by Modifying the Crystalline Order in Different Manufacturing Procedures

Journal of Advanced Materials in Engineering, 2019
In this study, the improvement of the magnetic properties of Co2FeSi Heusler compound was followed by the utilization of different experimental synthesizing procedures.
M. Hakimi, M. Safari
doaj  

Mechanochemical synthesis and magnetic properties of maghemite

Vojnotehnički Glasnik, 2011
This work presents the results of an investigation on maghemite (γ -Fe2O3) nanoparticles magnetic properties, which show superparamagnetic behavior i.e. superparamagnetism. Nanoscale maghemite samples were obtained by the mechanochemical method.
Marin M. Tadić, Nada M. Čitaković
doaj   +1 more source

Magnetization structure of a Bloch point singularity

, 2010
Switching of magnetic vortex cores involves a topological transition characterized by the presence of a magnetization singularity, a point where the magnetization vanishes (Bloch point).
A. Thiaville, A. Verga, B. Van Waeyenberge, C. Geuzaine, E. Feldtkeller, E.G. Galkina, J. Miltat, K. Yamada, O.A. Tretiakov, R. G. Elías, R. Hertel, R. Hertel, R. Hertel, T. Fischbacher, W. Doring   +14 more
core   +2 more sources