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We describe resistive states of the system combining two types of orderings - superconducting and ferromagnetic one. It is shown that in the presence of magnetization dynamics such systems become inherently dissipative and in principle…

Superconductivity · Physics 2019-11-19 D. S. Rabinovich , I. V. Bobkova , A. M. Bobkov , M. A. Silaev

The effect of suppression of static magnetization of an anisotropic hard superconductor by alternating magnetic field is analyzed theoretically. The magnetic moment suppression dynamics is described with respect to the magnetization loop of…

Superconductivity · Physics 2007-05-23 Alex Levchenko

Single crystals of $\alpha$-MnTe were synthesized by chemical vapor transport using iodine as the transport reagent. Structural characterization by powder x-ray diffraction confirmed the hexagonal structure (space group P6$_{3}$/mmc).…

In this Chapter, we present our latest experimental results (along with their theoretical interpretation) related to some unusual magnetic properties of artificially prepared ordered two-dimensional Josephson junction arrays (of both…

Superconductivity · Physics 2008-02-12 F. M. Araujo-Moreira , S. Sergeenkov

The effects of the crystalline symmetry on the magnetotransport properties in ferromagnetic alloys are being reexamined in recent years particularly due to the role of the anisotropic magnetoresistance on the electrical detection of…

Contrary to the expected detrimental influence on superconductivity when applying a magnetic field, we predict that the abrupt onset of such a field can temporarily strongly enhance the superconducting order parameter. Specifically, we find…

Superconductivity · Physics 2021-03-17 Eirik Holm Fyhn , Jacob Linder

We calculate the dc Josephson current $I_J$ for two types of superconductor-ferromagnet (S/F) Josephson junctions. The junction of the first type is a S/F/S junction. On the basis of the Eilenberger equation, the Josephson current is…

Superconductivity · Physics 2009-11-07 F. S. Bergeret , A. F. Volkov , K. B. Efetov

We study theoretically the dc Josephson tunnel current for a junction of two proximity S/F bilayers of a massive superconductor (S) / a thin ferromagnet (F) separated by an insulating (I) barrier. The dependence of the critical current on…

Superconductivity · Physics 2009-11-07 V. N. Krivoruchko , E. A. Koshina

We study the supercurrent in quasi-one-dimensional Josephson junctions with a weak link involving magnetism, either via magnetic impurities or via ferromagnetism. In the case of weak links longer than {\color{black}the magnetic…

Mesoscale and Nanoscale Physics · Physics 2018-12-24 P. A. Ioselevich , P. M. Ostrovsky , Ya. V. Fominov

We study the Josephson current through a ballistic normal metal layer of thickness $D$ on which two superconducting electrodes are deposited within a distance $L$ of each other. In the presence of an ({\it in-layer}) magnetic field we find…

Superconductivity · Physics 2009-11-13 G. Mohammadkhani , M. Zareyan , Ya. M. Blanter

Establishment of phase-coherence and a non-dissipative (super)current between two weakly coupled superconductors, known as the Josephson effect, plays a foundational role in basic physics and applications to metrology, precision sensing,…

The past two decades have seen an explosion of work on Josephson junctions containing ferromagnetic materials. Such junctions are under consideration for applications in digital superconducting logic and memory. In the presence of the…

Superconductivity · Physics 2024-04-05 Norman O. Birge , Nathan Satchell

The attainability of modification of the apparent magnetic anisotropy in (III,Mn)V ferromagnetic semiconductors is probed by means of the finite-elements-based modelling. The most representative case of (Ga,Mn)As and its in-plane uniaxial…

Materials Science · Physics 2017-02-14 K. Dziatkowski , A. Twardowski

We have measured micro-rheological and micro-structural properties of a super paramagnetic ferrofluid made of Mn$_{0.75}$Zn$_{0.25}$Fe$_2$O$_4$ (MZF) nanoparticles, using passive microrheology in a home built inverted microscope. Thermal…

Soft Condensed Matter · Physics 2014-02-21 Balaji Yendeti , G. Thirupathi , Ashok Vudaygiri , R. Singh

We investigate the Josephson radiation of nanowire (NW)-based Josephson junctions in a parallel magnetic field. The Josephson junction made of an InAs NW with superconducting Al leads shows the emission spectra which follow the Josephson…

Mesoscale and Nanoscale Physics · Physics 2018-07-25 Hiroshi Kamata , Russell S. Deacon , Sadashige Matsuo , Kan Li , Sören Jeppesen , Lars Samuelson , Hongqi Xu , Koji Ishibashi , Seigo Tarucha

The effects of the spin-orbit interaction on the tunneling magnetoresistance of ferromagnet/semiconductor/normal metal tunnel junctions are investigated. Analytical expressions for the tunneling anisotropic magnetoresistance (TAMR) are…

Mesoscale and Nanoscale Physics · Physics 2009-05-06 Alex Matos-Abiague , Jaroslav Fabian

A superconducting magnetometers based on the magnetic field dependence of the Eck step voltage in long Josephson tunnel junctions (LJTJs) is demonstrated. The field to be measured is applied perpendicular to a continuous superconducting…

Mesoscale and Nanoscale Physics · Physics 2013-06-18 Roberto Monaco , Carmine Granata , Roberto Russo , antonio Vettoliere

We examine the anisotropic properties of the exchange stiffness constant, $\mathcal{A}$, for rare-earth permanent magnet, Nd$_2$Fe$_{14}$B, by connecting analyses with two different scales of length, i.e., Monte Carlo (MC) method with an…

Materials Science · Physics 2018-08-22 Yuta Toga , Masamichi Nishino , Seiji Miyashita , Takashi Miyake , Akimasa Sakuma

The review is devoted to the fundamental aspects and characteristic features of the magnetoelectric effects, reported in the literature on Josephson junctions (JJs). The main focus of the review is on the manifestations of the direct and…

Superconductivity · Physics 2022-07-20 I. V. Bobkova , A. M. Bobkov , M. A. Silaev

Semiconductor-based Josephson junctions provide a platform for studying proximity effect due to the possibility of tuning junction properties by gate voltage and large-scale fabrication of complex Josephson circuits. Recently Josephson…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 William Mayer , Joseph Yuan , Kaushini Wickramasinghe , Tri Nguyen , Matthieu C. Dartiailh , Javad Shabani
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