Detail publikace

Doping Induced Spin State Transition in LaCoO3: Dynamical Mean-Field Study

AUGUSTINSKÝ, P. KŘÁPEK, V. KUNEŠ, J.

Originální název

Doping Induced Spin State Transition in LaCoO3: Dynamical Mean-Field Study

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Hole and electron doped LaCoO3 is studied using dynamical mean-field theory. The one-particle spectra are analyzed and compared to the available experimental data, in particular the x-ray absorption spectra. Analyzing the temporal spin-spin correlation functions we find the atomic intermediate spin state is not important for the observed Curie-Weiss susceptibility. Contrary to the commonly held view about the roles played by the t2g and eg electrons we find narrow quasiparticle bands of t2g character crossing the Fermi level accompanied by strongly damped eg excitations

Klíčová slova

Spin state transition; Hubbard model; LDA+DMFT; Magnetic perovskites

Autoři

AUGUSTINSKÝ, P.; KŘÁPEK, V.; KUNEŠ, J.

Rok RIV

2013

Vydáno

28. 6. 2013

ISSN

0031-9007

Periodikum

Physical Review Letters

Ročník

110

Číslo

26

Stát

Spojené státy americké

Strany od

267204-1

Strany do

267204-5

Strany počet

5