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 study the Holstein-Double Exchange model in three dimensions in thepresence of substitutional disorder. Using a new Monte Carlo technique weestablish the phase diagram of the clean model and then focus on the effect ofvarying electron-phonon coupling and disorder at fixed electron density. Wedemonstrate how extrinsic disorder controls the interplay of lattice polaroneffects and spin fluctuations and leads to widely varying regimes in transport.Our results on the disorder dependence of the ferromagnetic T_c andmetal-insulator transitions bear direct comparison to data on the `optimallydoped', x=0.3-0.4, manganites. We highlight disorder induced polaron formationas a key effect in these materials, organise a wide variety of data into asimple `global phase diagram', and make several experimental predictions.Comment: Published versio

Insulator-Metal Phase Diagram of the Optimally Doped Manganites from the Disordered Holstein-Double Exchange Model