نتایج جستجو برای: remanence

تعداد نتایج: 1669  

2015
Andy Quindeau Ignasi Fina Xavi Marti Geanina Apachitei Pilar Ferrer Chris Nicklin Eckhard Pippel Dietrich Hesse Marin Alexe

Spin-valves had empowered the giant magnetoresistance (GMR) devices to have memory. The insertion of thin antiferromagnetic (AFM) films allowed two stable magnetic field-induced switchable resistance states persisting in remanence. In this letter, we show that, without the deliberate introduction of such an AFM layer, this functionality is transferred to multiferroic tunnel junctions (MFTJ) all...

2017
Yen-Ju Chen Yen-I Lee Wen-Cheng Chang Po-Jen Hsiao Jr-Shian You Chun-Chieh Wang Chia-Min Wei

Hot deformation of Nd-Fe-B magnets has been studied for more than three decades. With a good combination of forming processing parameters, the remanence and (BH)max values of Nd-Fe-B magnets could be greatly increased due to the formation of anisotropic microstructures during hot deformation. In this work, a methodology is proposed for visualizing the material flow in hot-deformed Nd-Fe-B magne...

2007
A. A. Sattar H. M. El-Sayed

The effect of Zr-substitution on the physical and magnetic properties of Li0.3+0.5xZn0.4ZrxFe2.3-1.5xO4 ferrites (x=0.0, 0.01, 0.02, 0.03 and 0.05), prepared by the standard ceramic method, has been studied. It is found that the saturation magnetization increases up to x=0.02 and then it decreases. On the other hand, the initial permeability increased while the Curie temperature remained almost...

2009
I. Kong S. H. Ahmad M. H. Abdullah A. N. Yusoff

Abstract. The magnetic properties of magnetite nanoparticles and magnetite-thermoplastic natural rubber (TPNR) nanocomposites was prepared by melt-blending method has been studied using vibrating sample magnetometer (VSM). The saturation magnetization (MS), remanence (MR), squareness (MR/MS), coercivity (HC) and exchange-bias field (Heb) for magnetite nanoparticles and its nanocomposites increa...

2009
P Papadopoulos

Abstract We use generating functional analysis to study minority-game-type market models with generalized strategy valuation updates that control the psychology of agents’ actions. The agents’ choice between trend-following and contrarian trading, and their vigor in each, depends on the overall state of the market. Even in ‘fake history’ models, the theory now involves an effective overall bid ...

Journal: :Journal of geomagnetism and geoelectricity 1977

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