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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Disorder in stoichiometric magnesioferrite, MgFe 2 O 4 , was determined from in situ synchrotron powder X-ray diffraction data [λ = 0.3738(4) Å] at 6, 5, and 3 GPa and temperatures up to 1430 K. The a unit-cell parameter increases linearly on heating at the three different pressures. Higher pressures cause a smaller cell volume, as expected. Cation order was analyzed in terms of the inversion parameter, x, { iv [Mg 1-x Fex] vi [Mg x/2 Fe 1-x/2 ] 2 O 4 } and the order parameter Q = 1 - (3/2)x. As pressure increases, the inversion parameter increases in inverse MgFe 2 O 4  spinel. O'Neill and Navrotsky (1983) and Landau models were used to describe the equilibrium non-convergent ordering process in MgFe 2 O 4 , and they both fit the data well.

american mineralogist

Effects of high pressure and high temperature on cation ordering in magnesioferrite, MgFe 2 O 4 , using in situ synchrotron X-ray powder diffraction up to 1430 K and 6 GPa