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Related papers: Is the Fermi field contact and isotropic?

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As a probe to determine the pairing symmetry of quasi-two-dimensional anisotropic superconductors, we propose tunneling spectroscopy in the presence of magnetic field, where the magnetic field is parallel to the two dimensional planes and…

Superconductivity · Physics 2009-11-07 Y. Tanuma , Y. Tanaka , K. Kuroki , S. Kashiwaya

We study the conductivity of a 3D disordered metal close to the antiferromagnetic instability within the framework of the spin-fermion model using the diagrammatic technique. We calculate the interaction correction $\delta\sigma(\omega,T)$…

Strongly Correlated Electrons · Physics 2013-05-30 S. V. Syzranov , J. Schmalian

Microscopic model of the interaction of spins with a microwave field in a random-anisotropy magnet has been developed. Numerical results show that microwave absorption occurs in a broad range of frequencies due to the distribution of…

Materials Science · Physics 2021-06-09 D. A. Garanin , E. M. Chudnovsky

The finite temperature dynamical response function including the dynamical local field is derived within a quasiparticle picture for interacting one-, two- and three dimensional Fermi systems. The correlations are assumed to be given by a…

Strongly Correlated Electrons · Physics 2009-11-07 Klaus Morawetz

A fourteen-fold anisotropy in the spin transport efficiency parallel and perpendicular to the charge transport is observed in a vertically-biased (Ga,Mn)As-based spin-polarized light emitting diode. The spin polarization is determined by…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 D. K. Young , E. Johnston-Halperin , D. D. Awschalom , Y. Ohno , H. Ohno

We theoretically investigate the itinerant ferromagnetic transition of a spherically trapped ultracold Fermi gas with spin imbalance under strongly repulsive interatomic interactions. Our study is based on a self-consistent solution of the…

Quantum Gases · Physics 2010-08-25 H Dong , Hui Hu , Xia-Ji Liu , Peter D. Drummond

Application of the magnetic field parallel to the plane of the graphene sheet leads to the formation of electron- and hole-like Fermi surfaces. Such situation is shown to be unstable with respect to the formation of an excitonic condensate…

Mesoscale and Nanoscale Physics · Physics 2012-04-10 I. L. Aleiner , D. E. Kharzeev , A. M. Tsvelik

A method is presented for finding anisotropic distribution functions for stellar systems with known, spherically symmetric, densities, which depends only on the two classical integrals of the energy and the magnitude of the angular…

Astrophysics · Physics 2008-12-31 Zhenglu Jiang , Leonid Ossipkov

We investigate theoretically the interplay of proximity effects due to the presence of a superconductor and normal ferromagnetic leads on the formation of the spintronic quadrupolar exchange field in a large-spin molecule. We show that the…

Mesoscale and Nanoscale Physics · Physics 2019-07-03 Krzysztof P. Wójcik , Maciej Misiorny , Ireneusz Weymann

The electronic and magnetic structures of $ {\rm ScFe_2} $ and of its dihydride $ {\rm ScFe_2H_2} $ are self-consistently calculated within the density functional theory (DFT) using the all electron augmented spherical wave (ASW) method…

Materials Science · Physics 2008-04-17 A. F. Al Alam , S. F. Matar , N. Ouaini , M. Nakhl

We examine the spin asymmetry of ground states for two-dimensional, harmonically trapped two-component gases of fermionic atoms at zero temperature with weakly repulsive short range interactions. Our main result is that, in contrast to the…

Other Condensed Matter · Physics 2007-06-25 M. Ogren , K. Karkkainen , Y. Yu , S. M. Reimann

We investigate a mesoscopic spin current for strongly interacting Fermi gases through a quantum point contact. Under the situation where spin polarizations in left and right reservoirs are same in magnitude but opposite in sign, we…

Quantum Gases · Physics 2020-05-13 Yuta Sekino , Hiroyuki Tajima , Shun Uchino

We study the dynamical quasiparticle scattering by spin and charge fluctuations in Fe-based pnictides within a five-orbital model with on-site interactions. The leading contribution to the scattering rate is calculated from the second-order…

Superconductivity · Physics 2011-05-25 A. F. Kemper , M. M. Korshunov , T. P. Devereaux , J. N. Fry , H-P. Cheng , P. J. Hirschfeld

The infuence of the conduction-electron spin magnetization density, induced in a two-dimensional electron layer by a microwave electromagnetic field, on the rejection and transmission of the field is considered. Because of the induced…

Mesoscale and Nanoscale Physics · Physics 2016-06-29 Victor M. Edelstein

We calculate the backflow current around a fixed impurity in a Fermi liquid. The leading contribution at long distances is radial and proportional to 1/r^2. It is caused by the current induced density modulation first discussed by Landauer.…

Strongly Correlated Electrons · Physics 2009-10-30 W. Zwerger

We investigate the decomposition of the electromagnetic Poynting momentum density in three-dimensional random monochromatic fields into orbital and spin parts, using analytical and numerical methods. In sharp contrast with the paraxial…

Optics · Physics 2024-02-14 Titouan Gadeyne , Mark R. Dennis

The relation between the angular diameter distance and redshift in a spherically symmetric dust-shell universe is studied. We have discovered that the relation agrees with that of an appropriate Friedmann-Lemaitre (FL) model if we set a…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Norimasa Sugiura , Ken-ichi Nakao , Tomohiro Harada

Observation of surface-plasmon phenomena that are dependent upon the handedness of the circularly polarized incident light (spin) is presented. The polarization-dependent near-field intensity distribution obtained in our experiment is…

Optics · Physics 2008-08-01 Y. Gorodetski , A. Niv , V. Kleiner , E. Hasman

We calculate the nonequilibrium dynamic evolution of a one-dimensional system of two-component fermionic atoms after a strong local quench by using a time-dependent spin-density-functional theory. The interaction quench is also considered…

Strongly Correlated Electrons · Physics 2015-05-27 Gao Xianlong

We predict a mechanism of spontaneous stabilization of a uniaxial density wave in a two-dimensional metal with an isotropic Fermi surface in the presence of external magnetic field. The topological transformation of a closed Fermi surface…

Mesoscale and Nanoscale Physics · Physics 2019-09-05 Anatoly M Kadigrobov , Danko Radić , Aleksa Bjeliš
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