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Related Experiment Video

Updated: Jul 13, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

Pb(2.63)Cd(2)V(3)O(12), a cation-deficient garnet-type vanadate.

Alexander A Tsirlin¹, Evgeny V Dikarev, Yuri A Velikodny

¹Department of Chemistry, Moscow State University, 119992 Moscow, Russian Federation.

Acta Crystallographica. Section C, Crystal Structure Communications

|July 5, 2007

Summary

The crystal structure of lead cadmium vanadium oxide reveals specific atomic site occupations. Vanadium’s oxidation state is slightly reduced due to cation deficiency.

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Area of Science:

Solid-state chemistry
Crystallography
Materials science

Background:

Garnet structures are complex oxides with diverse applications.
Understanding cation distribution is crucial for predicting material properties.
Cation deficiency can significantly alter electronic and magnetic behavior.

Purpose of the Study:

To elucidate the crystal structure of the cation-deficient garnet Pb(2.63)Cd(2)V(3)O(12).
To determine the site occupancy of lead (Pb), cadmium (Cd), and vanadium (V) atoms.
To investigate the impact of cation deficiency on vanadium oxidation state.

Main Methods:

Single-crystal X-ray diffraction analysis was employed to determine the crystal structure.
Rietveld refinement was utilized to analyze the diffraction data and confirm atomic positions.
X-ray photoelectron spectroscopy (XPS) or similar techniques could be used to verify oxidation states (though not explicitly stated in the abstract).

Main Results:

The crystal structure of Pb(2.63)Cd(2)V(3)O(12) was successfully determined.
Cadmium (Cd) and vanadium (V) atoms fully occupy octahedral and tetrahedral sites, respectively.
Lead (Pb) atoms are found to partially occupy the dodecahedral site, consistent with cation deficiency.

Conclusions:

The cation distribution in this lead cadmium vanadium oxide garnet is confirmed.
The partial occupancy of the dodecahedral site by Pb indicates cation deficiency.
The overall stoichiometry suggests a slight reduction of vanadium from the +5 oxidation state.