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 temperature dependence of the correlation length xi and theuniform susceptibility chi_0 of the frustrated J1-J2 square-lattice Heisenbergferromagnet in the collinear stripe phase using Green-function technique. Theheight chi_{max} and the position T(chi_{max}) of the maximum in the chi_0(T)curve exhibit a characteristic dependence on the frustration parameter J2/|J1|,which is well described by power laws, chi_{max}=a(J2-J2^c)^{-nu} andT(chi_{max})=b(J_2-J_2^c), where J2^c = 0.4 and nu is of the order of unity.Thecorrelation length diverges at low temperatures as xi \propto e^{A/T}, where Aincreases with growing J2/|J1|. We also compare our results with recentmeasurements on layered vanadium phosphates and find reasonable agreement.

Thermodynamics of the two-dimensional frustrated J1-J2 Heisenberg ferromagnet in the collinear stripe regime: Susceptibility and correlation length