Landau-Gutzwiller quasiparticles
نویسندگان
چکیده
منابع مشابه
Nodal Landau Fermi-liquid quasiparticles in overdoped La1.77Sr0.23CuO4
C. G. Fatuzzo,1 Y. Sassa,2 M. Månsson,1,3,4 S. Pailhès,3,5 O. J. Lipscombe,6 S. M. Hayden,6 L. Patthey,7 M. Shi,7 M. Grioni,1 H. M. Rønnow,1 J. Mesot,1,2,3 O. Tjernberg,4 and J. Chang1,7,3 1Institute for Condensed Matter Physics, École Polytechnique Fedérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland 2Laboratory for Solid State Physics, ETH Zürich, CH-8093 Zürich, Switzerland 3Laboratory...
متن کاملOptical response of Sr2RuO4 reveals universal fermi-liquid scaling and quasiparticles beyond Landau theory.
We report optical measurements demonstrating that the low-energy relaxation rate (1/τ) of the conduction electrons in Sr(2)RuO(4) obeys scaling relations for its frequency (ω) and temperature (T) dependence in accordance with Fermi-liquid theory. In the thermal relaxation regime, 1/τ ∝ (ħω)(2)+(pπk(B)T)(2) with p = 2, and ω/T scaling applies. Many-body electronic structure calculations using dy...
متن کاملGutzwiller Approximation in Degenerate Hubbard Models
Degenerate Hubbard models are studied using the Generalized-GutzwillerApproximation. It is found that the metal-insulator transition occurs at a finite correlation Uc when the average number of electrons per lattice site is an integer. The critical Uc depends sensitively on both the band degeneracy N and the filling x. A derivation is presented for the general expression of Uc(x,N) which reprod...
متن کاملQuasiparticles do the twist
One of the most memorable lessons of an undergraduate course in quantum mechanics is that identical particles can have two types of “statistics.” An exchange of two identical bosons leaves the many-particle wave function unchanged, while an exchange of two identical fermions introduces a minus sign. The consequences of this minus sign are profound in all areas of physics. Moreover, it has long ...
متن کاملGutzwiller theory of band magnetism in LaOFeAs.
We use the Gutzwiller variational theory to calculate the ground-state phase diagram and quasiparticle bands of LaOFeAs. The Fe3d-As4p Wannier-orbital basis obtained from density-functional theory defines the band part of our eight-band Hubbard model. The full atomic interaction between the electrons in the iron orbitals is parametrized by the Hubbard interaction U and an average Hund's-rule in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2003
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.67.075103