High Temperature Thermodynamics of the Ferromagnetic Kondo-Lattice Model
H. Roder, R. R. P. Singh, J. Zang
Abstract
We present a high temperature series expansion for the ferromagnetic Kondo lattice model in the large coupling limit, which is used to model CMR perovskites. Our results show the expected cross-over to Curie-Weiß behavior at a temperature related to the bandwidth. Estimates for the magnetic transition temperatures are in the experimentally observed range. The compressibility shows that the high temperature charge excitations can be modeled by spinless fermions. The CMR effect itself, however, warrants the inclusion of dynamic effects and cannot be explained by a static calculation.
Create a lesson
Related papers
Magpie: A Graphical Magnon Software
Tobias Weber
Variational Minimization of Almost Strong Zero Modes in Parafermionic Wires
Niklas Tausendpfund, Matteo Rizzi
Field Response of the Orbital Moment Probed by Integrated Magnetic Circular Dichroism
Qian-Sheng Shi, Ziqiang Wang, Jian Kang et al.
Single-Particle Spectroscopy and Cross-Barrier Dynamics in Inhomogeneous Luttinger Liquids via Unified Field Bosonization Technique
Soundarya P, Venkata Suryanarayana M, Joy Prakash Das
Realistic Simulation of Valence-band Photoemission Spectra by using First-principles Calculations on the Basis of FLAPW Method
Noriaki Hamada, Satoshi Nakamura, Kenta Takahashi et al.
Dynamical chiral symmetry breaking in rotating QED3: critical flavor number and the occupation-reweighting channel
Wei Li