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 present magnetic suscceptibility and heat capacity data on a new S=1/2two-leg spin ladder compound BiCu2PO6. From our susceptibility analysis, wefind that the leg coupling J1/k_B is ~ 80 K and the ratio of the rung to legcoupling J2/J1 ~ 0.9. We present the magnetic contribution to the heat capacityof a two-leg ladder. The spin-gap Delta/k_B =3 4 K obtained from the heatcapacity agrees very well with that obtained from the magnetic susceptibility.Significant inter-ladder coupling is suggested from the susceptibilityanalysis. The hopping integrals determined using Nth order muffin tin orbital(NMTO) based downfolding method lead to ratios of various exchange couplings inagreement with our experimental data. Based on our band structure analysis, wefind the inter-ladder coupling in the bc-plane J2 to be about 0.75J1 placingthe compound presumably close to the quantum critical limit.

Spin-gap behaviour in the 2-leg spin-ladder BiCu2PO6