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The effect of a perfectly conducting planar boundary on the average linear momentum (LM), angular (momentum (AM), and power of a time-harmonic statistically isotropic random field is analyzed. These averages are purely imaginary and their…

Classical Physics · Physics 2019-09-09 Luk R. Arnaut , Gabriele Gradoni

We consider that no mean magnetic field exists during this epoch, but that there is a mean magnetic energy associated with large-scale magnetic inhomogeneities. We study the evolution of these inhomogeneities and their influence on the…

Astrophysics · Physics 2009-01-14 E. Battaner , E. Florido , J. Jimenez-Vicente

We investigate the current proportional to the cross product of an electric field and a temperature gradient, which we call the Nonlinear Chiral Thermo-Electric (NCTE) Hall effect, in 3D chiral magnetic structures. We analyze both discrete…

Mesoscale and Nanoscale Physics · Physics 2024-10-02 Terufumi Yamaguchi , Kazuki Nakazawa , Ai Yamakage

There has been considerable debate on the onset of exotic spin phenomena in quantum wires due to enhanced many-body effects caused by the one-dimensional (1D) alignment of charge carriers. We explain various observed spin effects, such as a…

Mesoscale and Nanoscale Physics · Physics 2015-02-17 Alfredo X. Sánchez , Jean-Pierre Leburton

We investigate HgTe/Nb-based three-terminal Josephson junctions in T-shaped and X-shaped geometries and their critical current contours (CCCs). By decomposing the CCCs into the contributions from individual junctions, we uncover how bias…

Persistent current and low-field magnetic susceptibility in single-channel normal metal rings threaded by a magnetic flux $\phi$ are investigated within the tight-binding framework considering long-range hopping of electrons in the {\em…

Mesoscale and Nanoscale Physics · Physics 2009-09-15 Santanu K. Maiti

Results from 2.5D and 3D studies of the onset and development of the tearing instability are presented, using high fidelity resistive MHD simulations. A limited parameter study of the strength of the reconnecting field (or shear angle) was…

Solar and Stellar Astrophysics · Physics 2022-03-30 Lars K. S. Daldorff , James E. Leake , James A. Klimchuk

Thin NbSe$_2$ retains superconductivity at high in-plane magnetic field up to 30 T. In this work we construct an atomically thin, all van der Waals SQUID, in which current flows between NbSe$_2$ contacts through two parallel graphene weak…

Superconductivity · Physics 2023-07-26 Ayelet Zalic , Takashi Taniguchi , Kenji Watanabe , Snir Gazit , Hadar Steinberg

The probability of occurrence of various topological configurations of the 3D null-point reconnection in a random magnetic field is studied. It is found that the non-axisymmetrical six-tail configuration (or "improper radial null") should…

Plasma Physics · Physics 2015-03-31 Yurii V. Dumin , Boris V. Somov

The appearance of eruptive space plasma processes, e.g., in eruptive flares as observed in the solar atmosphere, is usually assumed to be caused by magnetic reconnection. The process of magnetic reconnection is often connected with singular…

Solar and Stellar Astrophysics · Physics 2009-09-07 Dieter Nickeler , Marian Karlicky , Miroslav Barta

While electrons moving perpendicular to a magnetic field are confined to cyclotron orbits, they can move freely parallel to the field. This simple fact leads to complex current flow in clean, low carrier density semi-metals, such as…

In this work the dynamic magnetic field within a tearing-unstable three-dimensional (3D) current sheet about a magnetic null point is described in detail. We focus on the evolution of the magnetic null points and flux ropes that are formed…

Plasma Physics · Physics 2015-06-22 P. F. Wyper , D. I Pontin

We consider the Maxwell-London electrodynamics of three dimensional superconductors in p-wave pairing states with nodal points or lines in the energy gap. The current-velocity relation is then nonlinear in the applied field, cubic for point…

Superconductivity · Physics 2009-10-31 Klaus Halterman , Oriol T. Valls

Bulk superconductors are used in both many applications and material characterization experiments, being the bulk shape of rectangular prism very frequent. However the magnetization currents are still mostly unknown for this kind of three…

Superconductivity · Physics 2017-12-22 Enric Pardo , Milan Kapolka

Singular currents typically appear on rational surfaces in non-axisymmetric ideal magnetohydrodynamic equilibria with a continuum of nested flux surfaces and a continuous rotational transform. These currents have two components: a surface…

Plasma Physics · Physics 2024-02-13 Yi-Min Huang , Yao Zhou , Joaquim Loizu , Stuart Hudson , Amitava Bhattacharjee

Implosive formation of current sheets is a fundamental plasma process. Previous studies focused on the early time evolution, while here our primary aim is to explore the longer-term evolution, which may be critical for determining the…

Plasma Physics · Physics 2018-07-12 J. O. Thurgood , D. I. Pontin , J. A. McLaughlin

We theoretically investigate the nonlinear response current of a two-dimensional system under an in-plane magnetic field. Based on the extended semiclassical theory, we develop a unified theory including both longitudinal and transverse…

Mesoscale and Nanoscale Physics · Physics 2023-06-26 Yue-Xin Huang , Yang Wang , Hui Wang , Cong Xiao , Xiao Li , Shengyuan A. Yang

We present a general theory of current deviations in straight current carrying wires with random imperfections, which quantitatively explains the recent observations of organized patterns of magnetic field corrugations above micron-scale…

Other Condensed Matter · Physics 2008-06-14 Y. Japha , O. Entin-Wohlman , T. David , R. Salem , S. Aigner , J. Schmiedmayer , R. Folman

We obtain analytically a continuum of one-dimensional ballistic extended states in a two-dimensional disordered system, which consists of compactly coupled random and pure square lattices. The extended states give a marginal metallic phase…

Disordered Systems and Neural Networks · Physics 2009-10-31 Shi-Jie Xiong , S. N. Evangelou , E. N. Economou

Quantum polarization effects associated with the conformal anomaly in a static magnetic field background may generate a transverse electric current in the vacuum. The current may be produced either in an unbounded curved spacetime or in a…

High Energy Physics - Theory · Physics 2019-01-09 M. N. Chernodub , V. A. Goy , A. V. Molochkov
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