English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate the phase diagram of an extended Kondo lattice model for dopedmanganese oxides in the presence of strong but finite Hund's coupling andon-site Coulomb interaction. By means of the Schwinger-boson mean-fieldapproach, it is found that, besides magnetic ordering, there will benon-uniform charge distributions, such as charge ordering and phase separation,if the interaction between electrons prevails over the hybridization. Which ofthe charge ordering and phase separation appears is determined by a competitionbetween effective repulsive and attractive interactions due to virtualprocesses of electron hopping. Calculated results show that strong electroncorrelations caused by the on-site Coulomb interaction as well as the finiteHund's coupling play an important role in the magnetic ordering and chargedistribution at low temperatures.Comment: 7 pages including 3 figure

Phase diagram of an extended Kondo lattice model for manganites: The Schwinger-boson mean-field approach