Systematic rare Earth doping to adopt an R 32 type huntite structure in NdSc3(BO3)4 crystals

Artem B Kuznetsov; Konstantin A Kokh; Ekaterina V Kaneva; Ammar Y Jamous; Valery A Svetlichnyi; Nadezda G Kononova; Vyacheslav S Shevchenko; Anastasia A Goreiavcheva; Aleksander E Kokh

doi:10.1039/d3dt03942k

Systematic rare Earth doping to adopt an R 32 type huntite structure in NdSc₃(BO₃)₄ crystals

Dalton Trans. 2024 Feb 20;53(8):3818-3824. doi: 10.1039/d3dt03942k.

Authors

Artem B Kuznetsov¹, Konstantin A Kokh¹, Ekaterina V Kaneva², Ammar Y Jamous^{1

3}, Valery A Svetlichnyi³, Nadezda G Kononova¹, Vyacheslav S Shevchenko¹, Anastasia A Goreiavcheva¹, Aleksander E Kokh¹

Affiliations

¹ Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk 630090, Russia. kokh@igm.nsc.ru.
² Vinogradov Institute of Geochemistry SB RAS, Irkutsk 664033, Russia.
³ Tomsk State University, Tomsk 634050, Russia.

PMID: 38305387
DOI: 10.1039/d3dt03942k

Abstract

This study is focused on determining the type and quantity of REE impurities responsible for converting the structure of NdSc₃(BO₃)₄ into an R32 polymorph. According to the single crystal X-ray diffraction of R_xNd_ySc_z(BO₃)₄ (R = Sm-Lu, x + y + z = 4) the samples probably contain several polymorphic modifications. However, the predominant structure has been defined as R32 for R = Eu, Er, Tm, and Yb and P3₂21 for R = Sm, Gd, Tb, Dy, and Ho. Another potential limitation to the future use of the crystals is a compositional zoning found in the crystals with significant substitution in the scandium position.