Journal article
Metal–insulator transitions in reduced molybdenum oxides Sm 4Mo 18O 32 and Nd 4Mo 18O 32
Materials research bulletin, v 42(7), pp 1230-1241
2007
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Abstract
Synthesis, structure and electronic properties are reported on single crystals of Sm
4Mo
18O
32 and Nd
4Mo
18O
32. The triclinic crystal structure has three distinctly different Mo metal atom clusters (Mo
2, Mo
4 and Mo
6), which extend in complex chains. The temperature dependence of the electrical resistivity displays a broad minimum around 150–200
K with a pronounced increase in the 30–50
K range. However, unlike the related monoclinic reduced Mo oxides, A
4Mo
18O
32 (A
=
Y, Gd–Yb), there is no true metal–insulator transition in the Sm and Nd analogs. We discuss these observations in terms of correlations among the Mo clusters.
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Details
- Title
- Metal–insulator transitions in reduced molybdenum oxides Sm 4Mo 18O 32 and Nd 4Mo 18O 32
- Creators
- S.E. Lofland - Rowan UniversityS. Tyagi - Drexel UniversityJ.D. Hettinger - Rowan UniversityW.H. McCarroll - Rider UniversityK.V. Ramanujachary - Rowan UniversityP. Gall - University of Rennes 1P. Gougeon - University of Rennes 1
- Publication Details
- Materials research bulletin, v 42(7), pp 1230-1241
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000246817600007
- Scopus ID
- 2-s2.0-34247538563
- Other Identifier
- 991019167581304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary