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相关论文: Canted Magnetization Texture in Ferromagnetic Tunn…

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In antiferromagnetically coupled multilayers with perpendicular anisotropy unusual multidomain textures can be stabilized due to a close competition between long-range demagnetization fields and short-range interlayer exchange coupling. In…

介观与纳米尺度物理 · 物理学 2011-09-30 N. S. Kiselev , U. K. Roessler , A. N. Bogdanov , O. Hellwig

Using a simple quantum-mechanical model, we explore a tunneling anisotropic magnetoresistance (TAMR) effect in ferroelectric tunnel junctions (FTJs) with a ferromagnetic electrode and a ferroelectric barrier layer, which spontaneous…

介观与纳米尺度物理 · 物理学 2019-09-04 A. Alexandrov , M. Ye. Zhuravlev , Evgeny Y. Tsymbal

Spin-polarized current effect is studied on the static and dynamic magnetization of the antiferromagnet in a ferromagnet - antiferromagnet junction. The macrospin approximation is generalized to antiferromagnets. Canted antiferromagnetic…

材料科学 · 物理学 2011-06-20 E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

In this paper we analyze different contributions to the magnetoresistance of magnetic tunneling junctions at low voltages. A substantial fraction of the resistance drop with voltage can be ascribed to variations of the density of states and…

介观与纳米尺度物理 · 物理学 2009-11-10 C. A. Dartora , G. G. Cabrera

We consider a horizontal ferrofluid layer sandwiched between two layers of immiscible non-magnetic fluids. In a sufficiently strong vertical magnetic field the flat interfaces between magnetic and non-magnetic fluids become unstable to the…

材料科学 · 物理学 2009-11-10 Dirk Rannacher , Andreas Engel

The influence on the I-V characteristics and tunnel magnetoresistance (TMR), of impurities embedded into the insulating barrier I separating the two ferromagnetic electrodes F of a magnetic tunnel junction, was theoretically investigated.…

其他凝聚态物理 · 物理学 2015-06-24 F. Kanjouri , N. Ryzhanova , B. Dieny , N. Strelkov , A. Vedyaev

We consider magnetic properties of a long, thin-walled ferromagnetic nanotube. We assume that the tube consists of isotropic homogeneous magnet whose spins interact via the exchange energy, the dipole-dipole interaction energy, and also…

材料科学 · 物理学 2015-06-17 Chen Sun , Valery L. Pokrovsky

We report measurements of the electron transport through atomic-scale constrictions and tunnel junctions between ferromagnetic electrodes. Structures are fabricated using a combination of e-beam lithography and controlled electromigration.…

介观与纳米尺度物理 · 物理学 2007-05-23 Z. K. Keane , L. H. Yu , D. Natelson

We observed a magnetic interfacial effect due to the coupling between two interfaces of different materials. The interface is compoust of an antiferromagnetic and other quasi-ferromagnetic material. This effect we measured through the…

材料科学 · 物理学 2023-03-06 Wibson W. G. Silva , Sérgio V. B. Degiorgi , José Holanda

We study the relation between tunnel magnetoresistance (TMR) and interfacial electronic states modified by magnetic impurities introduced at the interface of the ferromagnetic tunnel junctions, by making use of the periodic Anderson model…

介观与纳米尺度物理 · 物理学 2009-11-07 J. Inoue , H. Itoh

We present a formula for tunneling conductance in ballistic ferromagnet/ferromagnetic insulator/superconductor junctions where the superconducting state has opposite spin pairing symmetry. The formula can involve correctly a ferromagnetism…

超导电性 · 物理学 2015-03-20 Nobukatsu Yoshida , Masashi Yamashiro

Anomalous Hall effect (AHE), which arises when a current is passed through a ferromagnetic material subjected to a perpendicular magnetic field, is proportional to the magnetization of the sample.Additional hump-like features in AHE are…

材料科学 · 物理学 2022-02-09 Nandana Bhattacharya , S. Middey

We study ferromagnetism in a repulsively interacting two-component Fermi gas in a harmonic trap. Within a local density approximation, the two components phase-separate beyond a critical interaction strength, with one species having a…

量子气体 · 物理学 2013-05-29 L. J. LeBlanc , J. H. Thywissen , A. A. Burkov , A. Paramekanti

The magnetization characteristic in a permalloy thin strip is investigated by electrically measuring the anisotropic magnetoresistance and ferromagnetic resonance in in-plane and out-of-plane configurations. Our results indicate that the…

材料科学 · 物理学 2014-03-05 Ziqian Wang , Guolin Yu , Xinzhi Liu , Bo Zhang , Xiaoshuang Chen , Wei Lu

The tunnel magnetoresistance (TMR) effect is one of the representative phenomena in spintronics. Ferromagnets, which have a net spin polarization, have been utilized for the TMR effect. Recently, by contrast, the TMR effect with…

介观与纳米尺度物理 · 物理学 2025-08-12 Katsuhiro Tanaka , Takuya Nomoto , Ryotaro Arita

Nb and its compounds are widely used in quantum computing due to their high superconducting transition temperatures and high critical fields. Devices that combine superconducting performance and spintronic non-volatility could deliver…

Theoretical calculations, computer simulations and experiments indicate the possible existence of a ferromagnetic liquid state, although definitive experimental evidence is lacking. Should such a state exist, demagnetization effects would…

软凝聚态物质 · 物理学 2009-10-31 S. Banerjee , M. Widom

We report the experimental observation of sub-Poissonian shot noise in single magnetic tunnel junctions, indicating the importance of tunneling via impurity levels inside the tunnel barrier. For junctions with weak zero-bias anomaly in…

介观与纳米尺度物理 · 物理学 2015-06-25 R. Guerrero , F. G. Aliev , Y. Tserkovnyak , T. S. Santos , J. S. Moodera

We study the annealing stability of bottom-pinned perpendicularly magnetized magnetic tunnel junctions based on dual MgO free layers and thin fixed systems comprising a hard [Co/Ni] multilayer antiferromagnetically coupled to thin a Co…

材料科学 · 物理学 2017-03-22 T. Devolder , S. Couet , J. Swerts , E. Liu , T. Lin , S. Mertens , G. Kar , A. Furnemont

We show that proper control of magnetization textures can be achieved in noncollinear antiferromagnets. This opens the versatile toolbox of domain-wall manipulation in the context of a different family of materials. In this way, we show…

介观与纳米尺度物理 · 物理学 2016-10-11 Camilo Ulloa , A. S. Nunez