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- Max Planck Institute for Mathematics in the SciencesDE139 papers
- Deutsches Elektronen-Synchrotron DESYDE122 papers
- University of RegensburgDE105 papers
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- Centre National de la Recherche ScientifiqueFR76 papers
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6 papers · 2 filters
Extrinsic Magnetotransport Phenomena in Ferromagnetic Oxides
Michael Ziese
This review is focused on extrinsic magnetotransport effects in ferromagnetic oxides. It consists of two parts; the second part is devoted to an overview of experimental data and t…
Magnetic and superconducting instabilities of the Hubbard model at the van Hove filling
Carsten Honerkamp, Manfred Salmhofer
We use a novel temperature-flow renormalization group technique to analyze magnetic and superconducting instabilities in the two-dimensional t-t' Hubbard model for particle densiti…
The temperature-flow renormalization group and the competition between superconductivity and ferromagnetism
Carsten Honerkamp, Manfred Salmhofer
We derive a differential equation for the one-particle-irreducible vertex functions of interacting fermions as a function of the temperature. Formally, these equations correspond t…
Magnetic order in the quasi-two-dimensional easy-plane XXZ model
D. Ihle, C. Schindelin, H. Fehske
A Green's-function theory of antiferromagnetic short-range and long-range order (LRO) in the quasi-two-dimensional easy-plane XXZ model is presented. As the main new result…
Beyond the random phase approximation in the Singwi-Sjölander theory of the half-filled Landau level
J. Dietel, W. Weller
We study the Chern-Simons system and consider a self-consistent field theory of the Singwi-Sjölander type which goes beyond the random phase approximation (RPA). By conside…
Determination of the chemical potential and the energy of the ν=1/2 FQHE system for low temperatures
J. Dietel
We consider the energy density of a spin polarized system for low temperatures. We show that due to the elimination of the magnetic field and the field of the positive back…