The RKKY interactions and the Mott Transition
G. Moeller, V. Dobrosavljevic, A. E. Ruckenstein
Abstract
A two-site cluster generalization of the Hubbard model in large dimensions is examined in order to study the role of short-range spin correlations near the metal-insulator transition (MIT). The model is mapped to a two-impurity Kondo-Anderson model in a self-consistently determined bath, making it possible to directly address the competition between the Kondo effect and RKKY interactions in a lattice context. Our results indicate that the RKKY interactions lead to qualitative modifications of the MIT scenario even in the absence of long range antiferromagnetic ordering.
Create a lesson
Related papers
Emergent one-dimensional Bloch oscillations in coupled Ising layers
E. S. Ma, Z. Song
Exotic metallic phase in a heterotic Kondo lattice: violation of Luttinger's theorem and absence of Kondo gap
Hanting Zhong, Shuxiang Yang, Chao Cao et al.
Exact SU(N) symmetry resolution of bosonic Hubbard models: general boson-fermion mappings and flat-band singlet-cluster states
Loïc Herviou
A new approach to the Kondo effect: sophomore's dream function and Lee-Yang zeros
V. Yu. Irkhin
Temperature evolution of spin dynamics in extended Kitaev models within an Abrikosov fermion theory beyond mean field
Daiki Sasamoto, Joji Nasu
Interplay of disorder and spin liquid physics in the triangular-lattice antiferromagnet YbZn2GaO5
Hafsa Zeroual, Shams Sohel Islam, Toni Shiroka et al.