On the Crystal Structure of Nd5Mo3O16+δ in the Pressure Range 0-5.9 GPa

被引：0

作者：

Chebyshev, K. A. ^{[1
]}

Turchenko, V. A. ^{[2
]}

Kichanov, S. E. ^{[2
]}

机构：

[1] Donetsk Natl Univ, Doneck 283001, Russia

[2] Joint Inst Nucl Res, Dubna 141980, Russia

来源：

JOURNAL OF SURFACE INVESTIGATION | 2023年 / 17卷 / 02期

关键词：

neodymium molybdate; fluorite structure; solid state reactions; neutron diffraction; the Rietveld method; atomistic modeling; GULP; NEUTRON-DIFFRACTION DATA; BROAD EXCITATION; CONDUCTIVITY; MOLYBDATES; ION; PR; SM; ND;

D O I：

10.1134/S1027451023020222

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

molybdate with a cubic fluorite-like structure is obtained by solid state reactions from metal oxides. The formation of the final product occurs through the formation at 700 degrees C of a monoclinic Ln(2)MoO(6)-type structure (space group C2/c) probably containing vacancies in the neodymium and oxygen lattices. Neodymium molybdate obtained at 900 degrees C crystallizes in the space group Pn (3) over barn with the cell parameter a approximate to 11.039 angstrom. The crystal structure of neodymium molybdate obtained at 700 and 900 degrees C is studied by neutron diffraction and atomistic modeling using the GULP program in the pressure range 0-5.9 GPa, which demonstrates stability of the cubic structure at elevated pressures.

引用

页码：478 / 483

页数：6

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