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

Gd-doped fluorapatite (1.2 ± 0.2 wt% Gd 2 O 3 ), synthesized from CaF 2 -rich melts, has been inves­tigated as single crystals and powder samples by using X-band (~9.4 GHz) electron paramagnetic resonance (EPR) spectroscopy at -295 and 120 K. The well-resolved X-band EPR spectra yielded a previously unreported type of Gd 3+  center “a” (S = 7/2) and also suggested the possible presence of a second and partly resolved type of Gd 3+  center “b.” In particular, the single-crystal X-band EPR spectra of center “a” from three orthogonal-rotation planes allowed determination of the spin-Hamil- tonian parameters, including the spin terms of type BS (matrix g) and S 2  (matrix D) and the param­eters associated with the high-spin terms of type S 4 and S 6  as well as BS 3  and BS 5 . The validity of the parameters has been confirmed by agreement between observed and simulated EPR spectra for both single crystals and powder samples.

american mineralogist

Electron paramagnetic resonance spectroscopic study of synthetic fluorapatite: Part I. Local structural environment and substitution mechanism of Gd 3+  at the Ca2 site