The crystal structure of single crystalline PrCa4O[BO3]3

被引：3

作者：

Weigel, Tina ^{[1
]}

Hanzig, Juliane ^{[1
]}

Mehner, Erik ^{[1
]}

机构：

[1] TU Bergakad Freiberg, Inst Expt Phys, Leipziger Str 23, D-09599 Freiberg, Germany

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE-CRYSTALLINE MATERIALS | 2022年 / 237卷 / 4-5期

关键词：

crystal structure; disorder; rare earth calcium oxoborate; single crystal X-ray diffraction; GROWTH; RECA4O(BO3)(3); GD;

D O I：

10.1515/zkri-2021-2072

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

PrCa4O[BO3](3) was grown as a single crystal by the Czochralski method. The precursor material was synthesized by solid state reaction under O-2 atmosphere and sintered after grinding under N-2 atmosphere with a content of 20% H-2. The Czochralski crystal growth proceeded under N-2 atmosphere with an oriented GdCa4O[BO3](3) crystal seed. A PrCa4O[BO3](3) crystal with a cylinder length of 20 mm, a diameter of 15 mm, and weight of 23.1 g was obtained. The crystal structure was solved from single crystal X-ray diffraction data in the monoclinic crystal system with space group C1m1 (No. 8), the lattice parameters a = 8.1293(6) angstrom, b = 16.062(1) angstrom, c = 3.6023(2) angstrom, beta = 101.371(2)degrees, formula units of 2 and final R- and wR2-values below 3.8%. A mixed occupancy between Pr and Ca of 6.0% was found.

引用

页码：159 / 166

页数：8

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