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Related papers: Giant magnetoimpedance in composite wires with ins…

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The giant magnetoimpedance effect in composite wires consising of a non-magnetic inner core and soft magnetic shell is studied theoretically. It is assumed that the magnetic shell has a helical anisotropy. The current and field…

Materials Science · Physics 2007-05-23 N. A. Buznikov , A. S. Antonov , A. B. Granovsky , C. G. Kim , C. O. Kim , X. P. Li , S. S. Yoon

A model describing the influence of torsion stress on the giant magnetoimpedance in amorphous wires with negative magnetostriction is proposed. The wire impedance is found by means of the solution of Maxwell equations together with the…

Materials Science · Physics 2007-05-23 N. A. Buznikov , C. O. Kim

Composite wires with a three-layered structure exhibit a large giant magneto-impedance (GMI) effect, which can be used in sensitive magnetic field sensors. To further investigate the origin of the GMI effect, composite wires consisting of a…

Materials Science · Physics 2013-07-02 Ralf Betzholz , Lingyan Shi , Haibin Gao , Zhenjie Zhao , Uwe Hartmann

Composite wires with a three-layered structure are known to show a particularly large magnetoimpedance effect. The wires consist of a highly conductive core, an insulating layer and an outer ferromagnetic shell. In order to understand the…

Materials Science · Physics 2013-01-21 Ralf Betzholz , Haibin Gao , Zhenjie Zhao , Uwe Hartmann

A model describing the exchange-biased asymmetric giant magneto-impedance in Joule-heated amorphous wires is proposed. It is assumed that the Joule heating results in the formation of a surface hard magnetic crystalline layer, and the…

Materials Science · Physics 2007-05-23 N. A. Buznikov , S. S. Yoon , C. G. Kim , C. O. Kim

This paper concerns the theoretical and experimental investigation of the magneto-impedance (MI) effect in amorphous wires in terms of the surface impedance tensor. Physical concepts of MI and problems of significant practical importance…

Instrumentation and Detectors · Physics 2007-05-23 D. P. Makhnovskiy , L. V. Panina , D. J. Mapps

A model describing the asymmetric giant magnetoimpedance (GMI) in field-annealed amorphous ribbons is proposed. It is assumed that the ribbon consists of an inner amorphous core and surface hard magnetic crystalline layers. The model is…

Materials Science · Physics 2007-05-23 N. A. Buznikov , C. G. Kim , C. O. Kim , S. S. Yoon

We consider the magnetoelectric effect produced by a capacitor formed by two semispherical perfectly conducting plates subjected to a potential difference and surrounded by a spherical shell of a topologically insulating material. The…

Mesoscale and Nanoscale Physics · Physics 2020-07-21 Daniel G. Velázquez , L. F. Urrutia

We have studied the Giant Magnetoresistance (GMR) for laterally confined multilayers, e.g., layers of wires, using the classical Boltzmann equation in the current-in-plane (CIP) geometry. For spin-independent specularity factors at the…

Condensed Matter · Physics 2007-05-23 Kingshuk Majumdar , Jian Chen , Selman Hershfield

We study theoretically the resistance at the interface between the two planar systems with different lattice constants a and b. The resistance and the effect of the magnetic field depends sensitively on the ratio a/b. The size of the…

Mesoscale and Nanoscale Physics · Physics 2013-03-01 Daichi Asahi , Naoto Nagaosa

The effective permittivity of composites containing ferromagnetic microwires has been analysed within a one-particle approximation, by considering a wire piece as an independent scatterer and solving the scattering problem with the…

Materials Science · Physics 2009-11-07 D. P. Makhnovskiy , L. V. Panina

The hysteresis curves of multilayer microwires consisting of a soft magnetic nucleus, intermediate non-magnetic layers, and an external hard magnetic layer are investigated. The magnetostatic interaction between magnetic layers is proved to…

Mesoscale and Nanoscale Physics · Physics 2011-06-14 J. Escrig , S. Allende , D. Altbir , M. Bahiana , J. Torrejon , G. Badini , M. Vazquez

We use a Boltzmann equation to determine the magnetoconductivity of quantum wires. The presence of a confining potential in addition to the magnetic field removes the degeneracy of the Landau levels and allows one to associate a group…

Condensed Matter · Physics 2009-10-22 Henrik Bruus , Karsten Flensberg , Henrik Smith

The status of Giant Magneto-Impedance effect is reviewed in Wires, Ribbons and Multilayered Soft Ferromagnetic Thin Films. After establishing the theoretical framework for the description of the effect, and the constraints any material…

Instrumentation and Detectors · Physics 2007-05-23 C. Tannous , J. Gieraltowski

Electrical resistivities can be different for charge currents travelling parallel or perpendicular to the magnetization in magnetically ordered conductors or semiconductors, resulting in the well-known planar Hall effect and anisotropic…

Mesoscale and Nanoscale Physics · Physics 2018-10-30 J. Liu , L. J. Cornelissen , J. Shan , T. Kuschel , B. J. van Wees

The propensity of some materials and multilayers to have a magnetic field dependent resistance, called magnetoresistance, has found commercial applications such as giant magnetoresistance harddisk read heads. But magnetoresistance can also…

Mesoscale and Nanoscale Physics · Physics 2014-12-15 D. P. Leusink , R. G. J. Smits , P. Ngabonziza , X. L. Wang , S. Wiedmann , U. Zeitler , A. Brinkman

A study of magnetic hysteresis and Giant magnetoimpedance (GMI) in amorphous glass covered Co-Si-B and Co-Mn-Si-B wires is presented. The wires, about 10 microns in diameter, were obtained by glass-coated melt spinning technique. Samples…

Materials Science · Physics 2007-05-23 H. B. Nie , X. X. Zhang , A. B. Pakhomov , Z. Xie , X. Yan , A. Zhukov , M. Vazquez

We use numerically unbiased methods to show that the one-dimensional Hubbard model with periodically distributed on-site interactions already contains the minimal ingredients to display the phenomenon of magnetoresistance; i.e., by applying…

Strongly Correlated Electrons · Physics 2018-07-19 Jian Li , Chen Cheng , Thereza Paiva , Hai-Qing Lin , Rubem Mondaini

A remarkably strong dependence of magnetoimpedance (MI) on tensile stress has been observed in the microwave frequency range for thin CoMnSiB glass-coated microwires exposed to a special thermal treatment. The MI ratio runs into more than…

Materials Science · Physics 2009-11-10 S. I. Sandacci , D. P. Makhnovskiy , L. V. Panina , V. S. Larin

The magnetization of a planar heterostructure of periodically alternating type-II superconductor and soft-magnet strips exposed to a transverse external magnetic field is studied. An integral equation governing the sheet current…

Superconductivity · Physics 2009-11-11 S. V. Yampolskii , Yu. A. Genenko , H. Rauh
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