Results 211 to 220 of about 3,319,169 (244)

Strongly correlated electron systems

Journal of Physics: Condensed Matter, 2012
This special section is dedicated to the Strongly Correlated Electron Systems Conference (SCES) 2011, which was held from 29 August–3 September 2011, in Cambridge, UK. SCES'2011 is dedicated to 100 years of superconductivity and covers a range of topics in the area of strongly correlated systems.
Siddharth S, Saxena, P B, Littlewood
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Electronic state of strongly correlated electrons

Physica C: Superconductivity, 1989
Abstract The electronic state is studied with use of the t -matrix approximation. The self-energy correction and the effective interaction are calculated simultaneously. The Fermi surface and the Hall coefficient change their character from electron-like to hole-like when U becomes larger than bare band width and the electron density n becomes ...
Yoshiaki Ōno, Tamifusa Matsuura
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Strongly Correlated Electrons

1991
Electron correlations are strong when the on-site electron-electron repulsions U are much larger than the energies associated with the overlap of atomic orbitals belonging to different atoms (resonance energies). The latter are characterized in a solid by the width W of the energy band under consideration.
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Numerical studies of strongly correlated electronic systems

AIP Conference Proceedings, 1998
The focus of these lectures will be to describe two very useful and complementary numerical techniques: the Lanczos method and Monte Carlo simulations and to apply them to relevant physical problems like high temperature superconductivity and colossal magnetoresistance.
Adriana Moreo, AVELLA, Adolfo, CUOCO, Mario   +2 more
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On the susceptibility of strongly correlated electrons

physica status solidi (b), 1979
AbstractThe isothermal longitudinal susceptibility of the Hubbard model is calculated. It is shown that in strongly correlated electron systems the susceptibility is proportional to the reciprocal temperature in the low temperature region as well as at high temperatures.
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Itinerant ferromagnetism in strongly correlated electron systems

Physical Review B, 1993
We exactly show that the ground state of the Anderson lattice with U=∞ is ferromagnetic at quarter filling if the level of localized electrons e f is deep enough: e f
, Yanagisawa, , Shimoi
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Strongly correlated confined electrons

2007
A few-electron system, as realized in semiconducting quantum dots, is investigated. Numerical results for the charge density distribution in quasi onedimensional (1D) systems reveal three characteristic regimes of electron densities. At low carrier densities the ground state and the collective excitations correspond to those of a finite Wigner crystal.
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Strongly correlated electron stripes

Physica B: Condensed Matter, 2005
We examine the electronic state of a 2D-electron stripe generated by stabilizing local polarization mainly caused by the ion shift. If the AF correlation in the stripe direction is partially violated by doped carriers, the bipartite-like lattice structure can be realized.
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Topics in strongly correlated electrons

2009
The thesis is a collection of three topics connected together by the common themes of strong interactions, magnetism and quantum phases, such as the Aharonov-Bohm or Berry phase.The first part of the present dissertation discusses the possibility of examining microscopic origins of magnetism in strongly interacting systems by exploiting the setting of ...
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Strongly Correlated Electron Systems II

Strongly Correlated Electron Systems II, 1991
G. Baskaran, A. E. Ruckenstein, E. Tosatti, Yu Lu   +3 more
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