Results 81 to 90 of about 358,903 (316)

Field-free magnetization reversal by spin-Hall effect and exchange bias [PDF]

Nature Communications, 2015
As the first magnetic random access memories are finding their way onto the market, an important issue remains to be solved: the current density required to write magnetic bits becomes prohibitively high as bit dimensions are reduced.
A. V. D. Brink, Guus Vermijs, A. Solignac, Jungwoo Koo, J. T. Kohlhepp, H. Swagten, B. Koopmans   +6 more
semanticscholar   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Magnetization reversal by superconducting current in φ 0 Josephson junctions [PDF]

, 2017
We study magnetization reversal in a φ 0 Josephson junction with direct coupling between magnetic moment and Josephson current. Our simulations of magnetic moment dynamics show that by applying an electric current pulse, we can realize the full ...
Y. Shukrinov, I. Rahmonov, K. Sengupta, A. Buzdin   +3 more
semanticscholar   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

Advanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut, Pierre Le Berre, Hamdi Jaballah, Lukas Fink, Victor Poline, Richard Haettel, Stéphane Grenier, Gilbert Chahine, Ewen Bellec, Guillaume Buatier, Wilfried Hortschitz, Santa Pile, Thomas Schrefl, Nils Blanc, Yuan Hong, Thibaut Devillers, Nora M. Dempsey   +16 more
wiley   +1 more source

Equivalent Electrical Model of an Inductor Excited by a Triangular Current Including Saturation

Communications, 2020
A model for an equivalent electrical circuit designed for a ferrite (3C90) inductor usually used in power converters excited by a non-sinusoidal current appropriate for use in power electronics is proposed. This study, based on 3D finite element analysis,
Jorge Rafael Gonzalez-Teodoro, Enrique Romero-Cadaval, Rafael Asensi, Vladimir Kindl   +3 more
doaj   +1 more source

Classification of dynamical switching regimes in a three-layered ferromagnetic nanopillar governed by spin-polarized injection current and external magnetic field. II. Perpendicular anisotropy [PDF]

Компьютерные исследования и моделирование, 2016
The mathematical model of a three-layered Co/Cu/Co nanopillar for MRAM cell with one fixed and one free layer was investigated in the approximation of uniformly distributed magnetization.
Natalia Vladimirovna Ostrovskaya, Vladimir Alexandrovich Skidanov, Maxim Sergeevich Skvortsov   +2 more
doaj   +1 more source

Magnetization switching in ferromagnets by adsorbed chiral molecules without current or external magnetic field

Nature Communications, 2017
Ferromagnets are commonly magnetized by either external magnetic fields or spin polarized currents. The manipulation of magnetization by spin-current occurs through the spin-transfer-torque effect, which is applied, for example, in modern ...
Oren Ben Dor, S. Yochelis, A. Radko, Kiran Vankayala, E. Capua, A. Capua, See-Hun Yang, L. Baczewski, S. Parkin, R. Naaman, Y. Paltiel   +10 more
semanticscholar   +1 more source

Ab Initio Theory of Coherent Laser-Induced Magnetization in Metals. [PDF]

Physical Review Letters, 2016
We present the first materials specific ab initio theory of the magnetization induced by circularly polarized laser light in metals. Our calculations are based on nonlinear density matrix theory and include the effect of absorption.
M. Berritta, Ritwik Mondal, K. Carva, P. Oppeneer   +3 more
semanticscholar   +1 more source

Exploration of Pseudobinary Alloys (Al–Mn)‐(Co–Fe–Ni) to Design High‐Entropy and Compositionally Complex Alloys to Stabilize the τ Phase in Al–Mn‐Based Ferromagnetic Alloys

Advanced Engineering Materials, EarlyView.
This experimental study investigates the thermodynamic limits of the Al–Mn τ ferromagnetic phase within complex‐composition alloys (CCAs). Using nine rare‐earth‐free compositions, it explores a broad region of the pseudobinary AlMnCoFeNi system. The results reveal intricate links between composition, phase stability, and magnetic behavior, highlighting
Sacha Plagnol‐Chauzu, Laurent Peltier, Fodil Meraghni, Stéphane Delalande, Frédéric Mazaleyrat   +4 more
wiley   +1 more source

Investigating Size- and Temperature-Dependent Coercivity and Saturation Magnetization in PEG Coated Fe3O4 Nanoparticles

Magnetochemistry, 2017
Polyethylene glycol (PEG) coated magnetic Fe3O4 nanoparticles with diameters of 12 nm, 15 nm, and 16 nm were synthesized by the usual co-precipitation method.
Chiranjib Nayek, Kaustuv Manna, Gourab Bhattacharjee, Pattukkannu Murugavel, Ihab Obaidat   +4 more
doaj   +1 more source