Effect of band filling in the Kondo lattice: A mean-field approach

The one dimensional Kondo lattice model at partial band filling †

the effect of a selfregulatory approach on the improvement of efl learners listening comprehension

تاثیر آموزش مهارت خود محوری بر روی ارتقاء مهارت شنیداری زبان آموزان هدف این پژوهش بررسی عوامل موثر در ارتقا مهارت شنیداری زبان آموزان ایرانی بود. در مرحله اول این تحقیق پژوهشگر پس از انجام مصاحبه نود زبان آموز را با استفاده از تست ایلتس انتخاب شدند. برای بررسی عوامل عوامل موثر در ارتقا مهارت شنیداری زبان آموزان ایرانی از دو نوع فیلم ویرایش شده و ویرایش نشده استفاده گردید.برای انجام تح...

Mean Field Studies of the 2 D Kondo Lattice Model

We develop and study a model of the Kondo lattice system under the mean field approximation using a HartreeFock procedure as the spin polarization of the system is varied. The goal of this investigation is to provide a realistic model and a starting point for further investigations using more sophisticated techniques, as well as to provide information on mean field solutions calculated on large...

Mean Field Description of Kondo-stabilized Spin Liquid in Kondo Lattice with Heavy Fermions

Microscopic mechanism of forming the spin liquid of neutral fermions in Kondo lattices with nearly integer valence of the f-electrons in presented. It is shown that the competition between the Kondo scattering and the indirect exchange interaction can result in stabilization of a state with separated spin and charge excitations with a Fermi-type spectrum for both of them. The origin of strong a...

Ground-state properties of the one-dimensional Kondo lattice at partial band filling.

We compute the magnetic structure factor, the singlet correlation function and the momentum distribution of the one-dimensional Kondo lattice model at the density ρ = 0.7. The density matrix-renormalization group method is used. We show that in the weak-coupling regime, the ground state is paramagnetic. We argue that a Luttinger liquid description of the model in this region is consistent with ...