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Superconductors used in magnet technology could carry extreme currents because of their ability to keep the magnetic flux motionless. The dynamics of the magnetic flux interaction with superconductors is controlled by this property. The…

Accelerator Physics · Physics 2015-01-29 F Gömöry

Multiple-band electronic structure and proximity to antiferromagnetic (AF) instability are the key properties of iron-based superconductors. We explore the influence of scattering by the AF spin fluctuations on transport of multiple-band…

Strongly Correlated Electrons · Physics 2016-11-03 A. E. Koshelev

X-ray and neutron scattering measurements directly demonstrate the existence of polarons in the paramagnetic phase of optimally-doped colossal magnetoresistive oxides. The polarons exhibit short-range correlations that grow with decreasing…

Strongly Correlated Electrons · Physics 2009-10-31 L. Vasiliu-Doloc , S. Rosenkranz , R. Osborn , S. K. Sinha , J. W. Lynn , J. Mesot , O. H. Seeck , G. Preosti , A. J. Fedro , J. F. Mitchell

The nucleon-nucleon scattering in a large magnetic background is considered to find its potential to change the neutrino emissivity of the neutron stars. For this purpose we consider the one-pion-exchange approximation to find the NN…

High Energy Physics - Phenomenology · Physics 2010-12-09 E. Bavarsad , M. Haghighat , R. Mohammadi

We study the generation of non-equilibrium spin currents in systems with spatially-inhomogeneous magnetic potentials. For sufficiently high current densities, the spin polarization can be transported over distances significantly exceeding…

Condensed Matter · Physics 2009-11-07 Ivar Martin

The scattering of pointlike particles at very large center of mass energies and fixed low momentum transfers, occurring due to both their electromagnetic and gravitational interactions is re-examined in the particular case when one of the…

High Energy Physics - Theory · Physics 2009-10-28 Saurya Das , Parthasarathi Majumdar

In partially ionized plasma, where ions can be in different ionization states, each charge state can be described as a different fluid for the purpose of multi-ion collisional transport. In the case of two charge states, transport pushes…

Plasma Physics · Physics 2022-11-23 M. E. Mlodik , E. J. Kolmes , I. E. Ochs , T. Rubin , N. J. Fisch

This paper continues the approach of Kostenko \& Thompson to calculating quantum electrodynamic processes in the ultrastrong magnetic field near some neutron stars, such as magnetars or merging binary neutron stars. Here we consider…

High Energy Astrophysical Phenomena · Physics 2020-03-31 Alexander Kostenko , Christopher Thompson

This work explores a simple approximation to describe isolated impurity scattering in a strongly correlated metal. The approximation combines conventional one electron scattering theory and the Dynamic Mean Field Theory to describe strong…

Strongly Correlated Electrons · Physics 2007-06-12 Pascal Lederer , Marcelo J. Rozenberg

It is shown that in the presence of strong magnetic fields, spin-orbit scattering causes a sharp increase in the effective density of states in the variable-range hopping regime when temperature decreases. This effect leads to an…

Condensed Matter · Physics 2009-10-28 Yigal Meir , Boris L. Altshuler

We study the spin mixing dynamics of ultracold spin-1 atoms in a weak non-uniform magnetic field with field gradient $G$, which can flip the spin from +1 to -1 so that the magnetization $m=\rho_{+}-\rho_{-}$ is not any more a constant. The…

Quantum Gases · Physics 2017-04-06 Jie Zhang , Baoguo Yang , Yunbo Zhang

Ionization of an atom or molecule presents surprising richness beyond our current understanding: strong-field ionization with low-frequency fields recently revealed unexpected kinetic energy structures (1, 2). A solid grasp on electron…

Devices for nano- and molecular size electronics are currently a focus of research aimed at an efficient current rectification and switching. Current switching due to conformational changes in the molecules is slow, on the order of a few…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. S. Alexandrov , A. M. Bratkovsky

The spin-transfer effect has been studied in magnetic tunnel junctions (PtMn/CoFe/Ru/CoFe/Al2O3/CoFe/NiFe) with dimensions down to 0.1x0.2 um2 and resistance-area product RA in the range of 0.5-10 Ohm m2 (dR/R=1-20%). Current-induced…

Other Condensed Matter · Physics 2009-11-11 Yiming Huai , Frank Albert , Paul Nguyen , Mahendra Pakala , Thierry Valet

Current-induced switching is considered in a magnetic junction. The junction includes pinned and free ferromagnetic layers which work in the regime of the high spin injection. It is shown that in such a regime the exchange magnetization…

Materials Science · Physics 2015-05-13 S. G. Chigarev , E. M. Epshtein , P. E. Zilberman

Stability of ground magnetization state of a thin magnetic nanowire against longitudinal spin-polarized current is studied theoretically with dipole-dipole interaction taken into account. The critical current, minimum current at which the…

Mesoscale and Nanoscale Physics · Physics 2014-09-02 Volodymyr P. Kravchuk

Micromagnetic instabilities and non-uniform magnetization states play a significant role in spin transfer induced switching of nanometer scale magnetic elements. Here we model domain wall mediated switching dynamics in perpendicularly…

Mesoscale and Nanoscale Physics · Physics 2021-01-13 Nahuel Statuto , Jamileh Beik Mohammadi , Andrew D. Kent

Based on a Monte Carlo method, we investigate the influence of transport conditions on the electron spin relaxation in GaAs. The decay of initial electron spin polarization is calculated as a function of distance under the presence of…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 E. A. Barry , A. A. Kiselev , K. W. Kim

The twisted magnetospheres of magnetars must sustain a persistent flow of electron-positron plasma. The flow dynamics is controlled by the radiation field around the hot neutron star. The problem of plasma motion in the self-consistent…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Andrei M. Beloborodov

We analyze transport of magnetization in insulating systems described by a spin Hamiltonian. The magnetization current through a quasi one-dimensional magnetic wire of finite length suspended between two bulk magnets is determined by the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Florian Meier , Daniel Loss
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