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 synthesized the 5d1-transition metal oxides AOsO4 (A = K, Rb, Cs) bysolid-state reaction, and performed structure determination and magnetic andheat capacity measurements. It was found that they crystallize in a scheelite(A = K and Rb) or a quasi-scheelite structure (A = Cs) comprising of distorteddiamond lattices of septivalent Os (d1) ions tetrahedrally coordinated by fouroxide ions without local inversion symmetry; hence an antisymmetric spin-orbitcoupling is expected in the crystals. The K and Rb compounds have Weisstemperatures of theta = -66 and -18 K, effective magnetic moments of mu_eff =1.44 and 1.45 mu_B/Os, and antiferromagnetic transition temperatures of T_N =36.9 and 21.0 K, respectively. In contrast, the Cs compound has theta = 12 Kand mu_eff = 0.8 mu_B/Os without magnetic transition above 2 K, insteadexhibiting a first-order structural transition at T_s = 152.5 K. The decline ofthe Os moment from 1.73 mu_B/Os for the simple d1 spin, particularly for Cs, islikely to originate from the antiparallel orbital moment, although thespin-orbit coupling is generally quenched in the low-lying e orbitals.

Crystal structure and the magnetic properties of the 5d transition metal oxide AOsO4 (A = K, Rb, Cs)