Compositionally controlled metal-insulator transition in Tl{sub 2-x}In{sub x}TeO{sub 6}

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2011.02.008· OSTI ID:21494243

Siritanon, Theeranun; Sleight, A W ^[1]

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1. Department of Chemistry, Oregon State University, Corvallis, OR 97331-4003 (United States)

Tl{sub 2}TeO{sub 6} and In{sub 2}TeO{sub 6} are both known to crystallize in the Na{sub 2}SiF{sub 6}-type structure. We find Tl{sub 2}TeO{sub 6} is metallic, whereas In{sub 2}TeO{sub 6} is an insulator. We have prepared a complete Tl{sub 2-x}In{sub x}TeO{sub 6} series in a search for a compositionally controlled metal-insulator transition that might be expected if a complete solid solution can be obtained. Unit cell edges and volume vary monotonically with no indication of a miscibility gap. The metal-insulator transition occurs at an x value of about 1.4, which can be rationalized on a percolation model. No superconductivity could be detected down to 5 K. -- Graphical abstract: A complete solid solution between Tl{sub 2}TeO{sub 6} and In{sub 2}TeO{sub 6} is formed. A compositionally controlled metal-insulator transition occurs in Tl{sub 2-x}In{sub x}TeO{sub 6} at an x value of about 1.5. No superconductivity could be detected down to 5 K. Display Omitted Research highlights: {yields} A complete solid solution between Tl{sub 2}TeO{sub 6} and In{sub 2}TeO{sub 6} is formed. {yields} A compositionally controlled metal-insulator transition occurs in Tl{sub 2-x}In{sub x}TeO{sub 6} at an x value of about 1.5, which can be rationalized on a percolation model. {yields} No superconductivity could be detected down to 5 K.

• OSTI ID: 21494243
• Journal Information: Journal of Solid State Chemistry, Vol. 184, Issue 4; Other Information: DOI: 10.1016/j.jssc.2011.02.008; PII: S0022-4596(11)00062-4; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
INDIUM OXIDES
SOLID SOLUTIONS
SUPERCONDUCTIVITY
TELLURIUM OXIDES
THALLIUM OXIDES
CHALCOGENIDES
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HOMOGENEOUS MIXTURES
INDIUM COMPOUNDS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLUTIONS
TELLURIUM COMPOUNDS
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