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 calculate the spin correlation function and the magnetic longitudinal andtransverse susceptibilities of a two-dimensional antiferromagnet doped with asmall concentration of holes, in the t-J model. We find that the motion ofholes generates spin fluctuations which add to the quantum fluctuations, thespin correlations decaying with the inverse of the spin distance, whileincreasing with doping as the critical hole concentration, where the long-rangeorder disappears, is approached. Moreover, the longitudinal susceptibilitybecomes finite in the presence of doping, due to the strong damping effectsinduced by the hole motion, while the transverse susceptibility is renormalizedby softening effects. Both the longitudinal and the transverse susceptibilitiesincrease with doping, the former more significantly than the latter. Ourresults imply that doping destroys the long-range order while localantiferromagnetic spin correlations persist. This is consistent withexperiments on the doped copper oxide superconductors.

Spin correlations and magnetic susceptibilities of lightly doped antiferromagnets