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Here, we experimentally demonstrate that a stack of metallic spiral structures (MSSs) can have dominant magnetic coupling in both of its two configurations. This allows magnetic-coupling-dominant energy transport along a one-dimensional…

Optics · Physics 2015-11-03 Zhen Gao , Fei Gao , Youming Zhang , Baile Zhang

We investigate the anisotropic nature of magnetocrystalline coupling between the crystallographic and skyrmion crystal (SKX) lattices in the chiral magnet MnSi by magnetic field-angle resolved resonant ultrasound spectroscopy. Abrupt…

Strongly Correlated Electrons · Physics 2018-04-04 Yongkang Luo , Shi-Zeng Lin , D. M. Fobes , Zhiqi Liu , E. D. Bauer , J. B. Betts , A. Migliori , J. D. Thompson , M. Janoschek , B. Maiorov

We study the effect of magnetic scattering on transport in a system with strong structural disorder, using exact finite size calculation of the low frequency optical conductivity. At weak electron-spin coupling spin disorder leads to a…

Disordered Systems and Neural Networks · Physics 2009-11-10 Sanjeev Kumar , Pinaki Majumdar

We study composite D-wave superconductors consisting of randomly oriented and randomly distributed superconducting droplets embedded into a matrix. In a certain range of parameters the application of a small magnetic field enhances the…

Superconductivity · Physics 2018-09-11 Mauro Schiulaz , Christopher L. Baldwin , Christopher R. Laumann , Boris Z. Spivak

The article reviews recent developments on magnetic properties of superconductors with anisotropic Cooper pairing. In particular, we show how the concept of broken symmetries is applied to the investigation of the mixed state in…

Condensed Matter · Physics 2016-08-31 I. A. Luk'yanchuk , M. E. Zhitomirsky

Magnetic properties of quark matter and its relation to the microscopic origin of the magnetic field observed in compact stars are studied. Spontaneous spin polarization appears in high-density region due to the Fock exchange term, which…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Tatsumi , E. Nakano , K. Nawa

The recently discovered multiband superconductors have created a new class of novel superconductors. In these materials multiple superconducting gaps arise due to the formation of Cooper pairs on different sheets of the Fermi surfaces. An…

Superconductivity · Physics 2014-07-23 Brendan J. Wilson , Mukunda P. Das

It was recently shown that conventional phonon-electron interactions induce triplet pairing states in time-reversal invariant 3D Dirac semi - metals provided magnetic impurities or exchange interactions are strong enough?. The order…

Superconductivity · Physics 2015-02-02 Baruch Rosenstein , Boris Ya. Shapiro , Irina Shapiro

Superconductivity for Type II superconductors in external magnetic fields of magnitude between the second and third critical fields is known to be restricted to a narrow boundary region. The profile of the superconducting order parameter in…

Spectral Theory · Mathematics 2010-05-27 Søren Fournais , Bernard Helffer , Mikael Persson

This study investigates magneto-rotational coupling as a distinct contribution to magnetoelastic interactions, which can be influenced by magnetic anisotropy. We determine magneto-rotational coupling coefficients that incorporate the shape…

Mesoscale and Nanoscale Physics · Physics 2025-06-23 Grzegorz Centała , Jarosław W. Kłos

The electric charge density in mesoscopic superconductors with circular symmetry, i.e. disks and cylinders, is studied within the phenomenological Ginzburg-Landau approach. We found that even in the Meissner state there is a charge…

Superconductivity · Physics 2009-10-31 S. V. Yampolskii , B. J. Baelus , F. M. Peeters , J. Kolacek

The magnetization of superconducting samples is influenced by their porosity. In addition to structural modifications and improved cooling, the presence of pores also plays a role in trapping magnetic flux. Pores have an impact on the…

Superconductivity · Physics 2024-03-19 Denis Gokhfeld

The influence of a magnetic field on superconductivity is usually described either phenomenologically, using Ginzburg-Landau theory, or semiclassically using Gor'kov theory. In this article we discuss the influence of magnetic fields on the…

Condensed Matter · Physics 2015-06-25 A. H. MacDonald , Hiroshi Akera , M. R. Norman

We study the effects of spin-orbit coupling on the magnetoconductivity in diffusive cylindrical semiconductor nanowires. Following up on our former study on tubular semiconductor nanowires, we focus in this paper on nanowire systems where…

Mesoscale and Nanoscale Physics · Physics 2017-12-07 Michael Kammermeier , Paul Wenk , John Schliemann , Sebastian Heedt , Thomas Gerster , Thomas Schäpers

Interaction of the superconducting condensate with deformations of the crystal lattice is formulated assuming the electrostatic potential of Bernoulli type and the effect of strain on material parameters. In the isotropic approximation it…

Superconductivity · Physics 2015-05-13 Pavel Lipavsky , Klaus Morawetz , Jan Kolacek , Ernst Helmut Brandt

The magnetization behavior of mesoscopic superconducting disks can show hysteretic behavior which we explain by using the Ginzburg-Landau (GL) theory and properly taking into account the de-magnetization effects due to geometrical form…

Superconductivity · Physics 2009-10-31 P. Singha Deo , V. A. Schweigert , F. M. Peeters

In the framework of the Ginzburg-Landau approach, we present a self-consistent theory of specific soliton states in mesoscopic (thin-walled) two-band-superconducting cylinders in external parallel magnetic fields. Such states arise in the…

Superconductivity · Physics 2012-09-20 S. V. Kuplevakhsky , A. N. Omelyanchouk , Y. S. Yerin

We study the interaction between a one dimensional magnetic nanostructure and a thin film superconductor. It is shown that different magnetic distributions produce characteristic magnetic field signatures. Moreover, the magnetic structure…

Superconductivity · Physics 2007-05-23 L. E. Helseth

We employ a systematic approach to construct superconducting order parameters based on the spin space group. Compared to magnetic space groups where spatial and spin rotation of elements are completely locked, the superconducting channels…

Mesoscale and Nanoscale Physics · Physics 2025-02-21 Xilin Feng , Zhongyi Zhang

In contrast to single-component superconductors, which are described at the level of Ginzburg-Landau theory by a single parameter \kappa and are divided in type-I \kappa<1/\sqrt{2} and type-II \kappa>1/\sqrt{2} classes, two-component…

Superconductivity · Physics 2011-10-17 Johan Carlstrom , Egor Babaev , Martin Speight