Browsing by Author "Pokrovsky, Valery L."
Now showing items 1-20 of 32
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Myers, KD; Canfield, PC; Kalatsky, VA; Pokrovsky, Valery L. (American Physical Society, 1999)Measurements
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Canfield, PC; Budko, SL; Cho, BK; Lacerda, A.; Farrell, D.; JohnstonHalperin, E.; Kalatsky, VA; Pokrovsky, Valery L. (American Physical Society, 1997)Detailed measurements of M(2 K, H, theta) of HoNi2B2C, where theta is the angle that the applied field H makes with the [110] axis while remaining perpendicular to the crystallographic c axis, reveal three metamagnetic ...
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Pokrovsky, Valery L.; Lyuksyutov, Igor F.; NATTERMANN, T. (American Physical Society, 1992)
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Kayali, MA; Pokrovsky, Valery L. (American Physical Society, 2004)We study the transport properties of vortex matter in a superconducting thin film separated by a thin insulator layer from a ferromagnetic layer. We assume an alternating stripe structure for both FM and superconducting ...
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Pokrovsky, Valery L.; Scheidl, S. (American Physical Society, 2004)We analyze the influence of colored classical Gaussian noise on Landau-Zener transitions during a two-level crossing in a time-dependent regular external field. Transition probabilities and coherence factors become random ...
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Schelter, Eric John (Texas A&M University, 2005-08-29)Clusters of metal ions that possess large numbers of magnetically coupled unpaired electrons have attracted much interest in recent years due to their fascinating magnetic behavior. With an appreciable component of magnetic ...
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Pokrovsky, SV; Pokrovsky, Valery L. (American Physical Society, 1996)We analyze in detail how the scattering by nonmagnetic impurities affects the shape and amplitude of the order parameter (OF) and the density of states in anisotropic superconductors in the framework of BCS theory. Special ...
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Kayali, MA; Kogan, VG; Pokrovsky, Valery L. (American Physical Society, 2005)We apply the time-dependent Ginzburg-Landau (TDGL) equations to study small ac currents of frequency omega in superconducting channels narrow on the scale of London penetration depth. We show that TDGL equations have ...
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Pokrovsky, Valery L.; Sinitsyn, NA. (American Physical Society, 2003)We study the influence of a fast noise on Landau-Zener transitions. We demonstrate that a fast colored noise much weaker than the conventional white noise can produce transitions itself or can change substantially the ...
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Pokrovsky, Valery L.; Sun, D. (American Physical Society, 2007)We show by direct calculation starting from a microscopic model that the two-state system with time-dependent energy levels in the presence of fast quantum noise obeys the master equation. The solution of master equation ...
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Sinitsyn, Nikolai (Texas A&M University, 2004-09-30)Nanoscale systems have sizes intermediate between atomic and macroscopic ones. Therefore their treatment often requires a combination of methods from atomic and condensed matter physics. The conventional Landau-Zener theory, ...
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Erdin, S.; Kayali, AF; Lyuksyutov, Igor F.; Pokrovsky, Valery L. (American Physical Society, 2002)Here we report a method to calculate the vortex and magnetization arrangement for a system of interacting superconductors and ferromagnets separated in space. The method is based on static London-Maxwell equations and the ...
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Pokrovsky, Valery L.; Sinitsyn, NA. (American Physical Society, 2002)We present an exact asymptotic solution for electron transition amplitudes in an infinite linear chain driven by an external time-dependent electric field. This solution extends the Landau-Zener theory for the case of an ...
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Sun, Deqiang (2010-01-16)This dissertation discusses the Landau-Zener (LZ) theory and its application in noisy environments and in many-body systems. The first project considers the effect of fast quantum noise on LZ transitions. There are two ...
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Abanov, Artem; Kashuba, A.; Pokrovsky, Valery L. (American Physical Society, 1997)In a two-dimensional XY ferromagnet the dipole force induces a strong interaction between spin waves in the long-wavelength limit. The major effect of this interaction is the transformation of a propagating spin wave into ...
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Kalatsky, VA; Pokrovsky, Valery L. (American Physical Society, 1998)We demonstrate that the system of localized magnetic moments in HoNi2B2C can be described by the four-positional clock model. This model, at a proper choice of the coupling constants, yields several metamagnetic phases in ...
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Li, Fuxiang; Saslow, Wayne M.; Pokrovsky, Valery L. (Scientific Reports, 2013)
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Abanov, Artem; KALATSKY, V.; Pokrovsky, Valery L.; SASLOW, WM. (American Physical Society, 1995)
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Dobrescu, Bogdan E. (2009-06-02)In this thesis I present a nonequilibrium quantum field theory that describes the production of molecular dimers from a two-component quantum-degenerate atomic Fermi gas, via a linear downward sweep of a magnetic field ...
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Kazantsev, A. P.; Pokrovsky, Valery L. (American Physical Society, 1983)