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相关论文: Magnetization reversal in spin patterns with compl…

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We investigate the magnetization reversal processes on classes of complex spin networks with antiferromagnetic interaction along the network links. With slow field ramping the hysteresis loop and avalanches of spin flips occur due to…

无序系统与神经网络 · 物理学 2007-05-23 K. Malarz , W. Antosiewicz , J. Karpinska , K. Kulakowski , B. Tadic

We have studied the magnetization reversal process in FM/AFM bilayer structures through of spin dynamics simulation. It has been observed that the magnetization behavior is different at each branch of the hysteresis loop as well as the…

材料科学 · 物理学 2014-03-24 E. B. Santos , P. Z. Coura , R. A. Dias , S. A. Leonel , J. C. S. Rocha

The interplay between intrinsic and surface/interface-induced magnetic anisotropies strongly in- fluences magnetization processes in nanomagnetic systems. We develop a micromagnetic theory to describe the field-driven reorientation in…

介观与纳米尺度物理 · 物理学 2016-07-12 A. A. Leonov , U. K. Roessler , A. N. Bogdanov

Magnetization reversal in ferro- and ferrimagnets is a well-known archetype of non-equilibrium processes, where the volume fractions of the oppositely magnetized domains vary and perfectly compensate each other at the coercive magnetic…

Magnetic junction is considered which consists of two ferromagnetic metal layers, a thin nonmagnetic spacer in between, and nonmagnetic lead. Theory is developed of a magnetization reversal due to spin injection in the junction.…

材料科学 · 物理学 2009-11-10 R. J. Elliott , E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

Magnetic remanence - found in bar magnets or magnetic storage devices - is probably the oldest and most ubiquitous phenomenon underpinning technological applications of magnetism. It is a macroscopic non-equilibrium phenomenon: a remanent…

We observe a thermally induced spontaneous magnetization reversal of epitaxial ferromagnet/antiferromagnet heterostructures under a constant applied magnetic field. Unlike any other magnetic system, the magnetization spontaneously reverses,…

材料科学 · 物理学 2009-11-11 Zhi-Pan Li , Johannes Eisenmenger , Casey W. Miller , Ivan K. Schuller

The reversal of the magnetization of crystals of molecular magnets that have a large spin and high anisotropy barrier generally proceeds below the blocking temperature by quantum tunneling. This is manifested as a series of controlled steps…

介观与纳米尺度物理 · 物理学 2013-02-21 Myriam P. Sarachik

We experimentally investigate magnetization reversal curves for a GeTe topological semimetal. In addition to the known lattice diamagnetic response, we observe narrow magnetization loop in low fields, which should not be expected for…

介观与纳米尺度物理 · 物理学 2024-06-14 A. A. Avakyants , N. N. Orlova , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

The magnetization reversal in a single molecular magnet (SMM) weakly coupled to an electrode with spin-dependent splitting of chemical potentials (spin bias) is theoretically investigated by means of the rate equation. A microscopic…

介观与纳米尺度物理 · 物理学 2009-05-14 Hai-Zhou Lu , Bin Zhou , Shun-Qing Shen

The magnetization reversal process in thin-film ferromagnetic elements with surface anisotropy of various shapes and sizes is investigated by means of numerical simulation. The dependence of the perpendicular and in-plane hysteresis loops…

介观与纳米尺度物理 · 物理学 2018-03-14 N. A. Usov , O. N. Serebryakova

Hysteretic magneto-resistance of point contacts formed between non-magnetic tips and single ferromagnetic films exchange-pinned by antiferromagnetic films is investigated. The analysis of the measured current driven and field driven…

介观与纳米尺度物理 · 物理学 2015-05-18 I. K. Yanson , Yu. G. Naidyuk , O. P. Balkashin , V. V. Fisun , L. Yu. Triputen , S. Andersson , V. Korenivski , Yu. I. Yanson , H. Zabel

We investigate experimentally and theoretically the magnetization reversal process in one-dimensional magnonic structures composed of permalloy nanowires of the two different widths and finite length arranged in a periodic and quasiperiodic…

介观与纳米尺度物理 · 物理学 2019-02-20 K. Szulc , F. Lisiecki , A. Makarov , M. Zelent , P. Kuświk , H. Głowiński , J. W. Klos , M. Munzenberg , R. Gieniusz , J. Dubowik , F. Stobiecki , M. Krawczyk

Nanoscale superlattices with uniaxial ferromagnetic layers antiferromagnetically coupled through non-magnetic spacers are recently used as components of magnetoresistive and recording devices. In the last years intensive experimental…

材料科学 · 物理学 2015-06-24 U. K. Roessler , A. N. Bogdanov

We consider a ferromagnetic/antiferromagnetic bilayer on a triangular lattice in the framework of the planar Heisenberg model. The impact of the geometrical frustration in this system on the magnetization curves and the exchange bias…

统计力学 · 物理学 2023-07-19 M. Pankratova , M. Žukovič

Recent studies of networks representing complex systems from the brain to social graphs have revealed their higher-order architecture, which can be described by aggregates of simplexes (triangles, tetrahedrons, and higher cliques). Current…

软凝聚态物质 · 物理学 2026-03-11 Bosiljka Tadic , Neelima Gupte

The magnetization switching of a thin ferromagnetic layer placed on top of a heavy metal (such as Pt, Ta or W) driven by an in-plane current has been observed in recent experiments. The magnetization dynamics of these processes is studied…

材料科学 · 物理学 2015-06-16 G. Finocchio , M. Carpentieri , E. Martinez , B. Azzerboni

This paper describes a model for magnetization reversal in polycrystalline Ferromagnetic/Antiferromagnetic exchange biased bilayers. We assume that the exchange energy can be expanded into cosine power series. We show that it is possible to…

材料科学 · 物理学 2009-11-10 D. Spenato , S. P. Pogossian , H. Le Gall

Magnetization reversal mechanisms and impact of magnetization direction are studied in square arrays of interconnected circular permalloy nanorings using MOKE, local imaging, numerical simulations and transport techniques.

We investigate magnetization reversal processes of magnetic nanorings. Using a recently developed efficient cartesian coordinates fast multipole method, magnetization switching phase diagrams are constructed for such structures. We find…

介观与纳米尺度物理 · 物理学 2015-05-14 Wen Zhang , Stephan Haas
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