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146 papers · 1 filter
Interactions of Parametrically Driven Dark Solitons. I: Néel-Néel and Bloch-Bloch interactions
I. V. Barashenkov, S. R. Woodford, E. V. Zemlyanaya
We study interactions between the dark solitons of the parametrically driven nonlinear Schrödinger equation, Eq.(\ref{NLS}). When the driving strength, , is below $\sqrt{γ^2 +1/…
Subband filling and Mott transition in Ca_{2-x}Sr_xRuO_4
A. Liebsch, H. Ishida
A new concept is proposed for the paramagnetic metal insulator transition in the layer perovskite Ca_{2-x}Sr_xRuO_4. Whereas the pure Sr compound is metallic up to very large Coulo…
First-principles prediction of high Curie temperature for ferromagnetic bcc-Co and bcc-FeCo alloys and its relevance to tunneling magnetoresistance
Marjana Lezaic, Phivos Mavropoulos, Stefan Blügel
We determine from first-principles the Curie temperature Tc for bulk Co in the hcp, fcc, bcc, and tetragonalized bct phases, for FeCo alloys, and for bcc and bct Fe. For bcc-Co, Tc…
Extended Theory of Finite Fermi Systems: Application to the collective and non-collective E1 strength in Pb
V. Tselyaev, J. Speth, F. Gruemmer +4
The Extended Theory of Finite Fermi Systems is based on the conventional Landau-Migdal theory and includes the coupling to the low-lying phonons in a consistent way. The phonons gi…
Domain structures and superdislocations of La0.7Ca0.3MnO3 thin films grown on SrTiO3 substrates
Yong Ding, Jiaqing He
The domain structures and dislocations in epitaxial thin films of La0.7Ca0.3MnO3 grown on SrTiO3 substrates by pulsed laser deposition were investigated using Bragg-contrast diffra…
Study of the 3He-eta system in d-p collisions
J. Smyrski, H. -H. Adam, A. Budzanowski +22
We have measured excitation functions for the d+p->3He+X, (X=pi0, eta) channels near the eta production threshold. The data were taken during a slow ramping of the COSY internal de…