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The resistivity in metals near an antiferromagnetic quantum critical point (QCP) is strongly affected by small amounts of disorder. In a quasi-classical treatment, we show that an interplay of strongly anisotropic scattering due to spin…

Strongly Correlated Electrons · Physics 2009-10-31 A. Rosch

Peculiarities of transport properties of three- and two-dimensional half-metallic ferromagnets are investigated, which are connected with the absence of spin-flip scattering processes. The temperature and magnetic field dependences of…

Strongly Correlated Electrons · Physics 2009-11-07 V. Yu. Irkhin , M. I. Katsnelson

We report on the evolution of ferromagnetic domain walls during magnetization reversal in elastically coupled ferromagnetic-ferroelectric heterostructures. Using optical polarization microscopy and micromagnetic simulations, we demonstrate…

Materials Science · Physics 2012-10-25 Kévin J. A. Franke , Tuomas H. E. Lahtinen , Sebastiaan van Dijken

In this review, we outline the important results on the resistivity encountered by an electron in magnetically ordered materials. The mechanism of the collision between the electron and the lattice spins is shown. Experiments on the spin…

Statistical Mechanics · Physics 2023-01-10 Danh-Tai Hoang , Hung T. Diep

In the band theory of ferromagnetism there is a relative shift in the position of majority and minority spin bands due to the self-consistent field due to opposite spin electrons. In the simplest realization, the Stoner model, the majority…

Strongly Correlated Electrons · Physics 2009-10-31 J. E. Hirsch

We discuss the importance of boundary effects on fermionic matter in a rotating frame. By explicit calculations at zero temperature we show that the scalar condensate of fermion and anti-fermion cannot be modified by the rotation once the…

High Energy Physics - Phenomenology · Physics 2016-11-23 Shu Ebihara , Kenji Fukushima , Kazuya Mameda

Interfacial Dzyaloshinskii-Moriya interaction (IF-DMI) leads to non-collinear spin configurations within the magnetic layers of multilayer heterostructures, while its interlayer counterpart (IL-DMI) minimizes chiral states between the…

Mesoscale and Nanoscale Physics · Physics 2024-11-25 Elena Y. Vedmedenko , Mikhail Kostylev

We study the magnetic damping in the simplest of synthetic antiferromagnets, i.e. antiferromagnetically exchange-coupled spin valves in which applied magnetic fields tune the magnetic configuration to become noncollinear. We formulate the…

Mesoscale and Nanoscale Physics · Physics 2015-08-07 Takahiro Chiba , Gerrit E. W. Bauer , Saburo Takahashi

The ballistic conductance through a device consisting of quantum wires, to which two stubs are attached laterally, is calculated assuming parabolic confining potentials of frequencies $\omega_w$ for the wires and $\omega_s$ for the stubs.…

Mesoscale and Nanoscale Physics · Physics 2016-08-16 R. Akis , P. Vasilopoulos , P. Debray

It is known that the two eigen plane waves incident to the generalized soft-and-hard/DB (GSHDB) boundary are reflected as from the PEC or PMC boundary, i.e., with reflection coefficients $-1$ or $+1$, for any angle of incidence. The present…

Classical Physics · Physics 2021-08-12 Ismo V. Lindell , Ari Sihvola

Understanding of the interaction of antiferromagnetic solitons including domain walls and skyrmions with boundaries of chiral antiferromagnetic slabs is important for the design of prospective antiferromagnetic spintronic devices. Here, we…

Mesoscale and Nanoscale Physics · Physics 2021-04-12 Oleksandr V. Pylypovskyi , Artem V. Tomilo , Denis D. Sheka , Jürgen Fassbender , Denys Makarov

A popular approach to modeling bimolecular reactions between diffusing molecules is through the use of reactive boundary conditions. One common model is the Smoluchowski partial absorption condition, which uses a Robin boundary condition in…

Biological Physics · Physics 2015-11-17 S. Jonathan Chapman , Radek Erban , Samuel A. Isaacson

Minimizing divergence measures under a constraint is an important problem. We derive a sufficient condition that binary divergence measures provide lower bounds for symmetric divergence measures under a given triangular discrimination or…

Information Theory · Computer Science 2022-11-11 Tomohiro Nishiyama

Tunneling Magnetoresistance between two ferrromagnets is an issue of fundamental importance in spintronics. In this work, we show that tunneling magnetoresistance can also emerge in junctions composed of ferromagnets and time-reversal…

Mesoscale and Nanoscale Physics · Physics 2016-02-09 Zhongbo Yan , Shaolong Wan

The phenomenological boundary conditions for the envelope wave function, which is applicable for contacts of semiconductors with the rather different crystal symmetry are proposed. It is shown that the boundary conditions are determined by…

Materials Science · Physics 2008-02-03 Leonid S. Braginsky

The dynamics of quantum field theories on bounded domains requires the introduction of boundary conditions on the quantum fields. We address the problem from a very general perspective by using charge conservation as a fundamental principle…

High Energy Physics - Theory · Physics 2015-01-16 M. Asorey , D. Garcia-Alvarez , J. M. Munoz-Castaneda

Exchange bias is a horizontal shift of the hysteresis loop observed for a ferromagnetic layer in contact with an antiferromagnetic layer. Since exchange bias is related to the spin structure of the antiferromagnet, for its fundamental…

Materials Science · Physics 2009-11-07 U. Nowak , A. Misra , K. D. Usadel

The Bergman-Milton bounds provide limits on the effective permittivity of a composite material comprising two isotropic dielectric materials. These provide tight bounds for composites arising from many conventional materials. We reconsider…

Optics · Physics 2015-06-26 Andrew J. Duncan , Tom G. Mackay , Akhlesh Lakhtakia

Ferromagnetism is a manifestation of strong repulsive interactions between itinerant fermions in condensed matter. Whether short-ranged repulsion alone is sufficient to stabilize ferromagnetic correlations in the absence of other effects,…

Quantum Gases · Physics 2017-07-07 G. Valtolina , F. Scazza , A. Amico , A. Burchianti , A. Recati , T. Enss , M. Inguscio , M. Zaccanti , G. Roati

Several new features arise in the ground-state phase diagram of a spin-1 condensate trapped in an optical trap when the magnetic dipole interaction between the atoms is taken into account along with confinement and spin precession. The…

Quantum Gases · Physics 2010-02-06 Jonas A. Kjäll , Andrew M. Essin , Joel E. Moore