Journal article
Insulator-metal transition in BaCo 0.9 Ni 0.1 S 2 − y Se y
Physical review. B, Condensed matter, Vol.62(19), pp.12792-12799
11/2000
DOI: 10.1103/PhysRevB.62.12792
Abstract
Compounds of the Se-doped layered transition-metal sulfide series BaCo0.9Ni0.1S2−ySey(y<~0.4) were prepared and structural, magnetic, and electrical properties were investigated. These compounds exhibit the unusual first-order antiferromagnetic semiconductor to paramagnetic metal transition with decreasing temperature that was previously seen in the sulfur-deficient BaCo1−xNixS2−y series. This transition is associated with a major structural change. The previously unknown crystal structure of the low-temperature phase is reported. Electrical resistance and magnetic susceptibility measurements are used to construct the phase diagram for BaCo0.9Ni0.1S2−ySey. Doping with Se increases the insulator-metal transition temperature, but has very little effect on other properties since it substitutes for S only in the BaS layers.
Details
- Title: Subtitle
- Insulator-metal transition in BaCo 0.9 Ni 0.1 S 2 − y Se y
- Creators
- J. W. Schweitzer - University of IowaL. S. Martinson - University of IowaN. C. Baenziger - University of IowaD. C. Swenson - University of IowaVictor G. Young - University of IowaIlia Guzei - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physical review. B, Condensed matter, Vol.62(19), pp.12792-12799
- DOI
- 10.1103/PhysRevB.62.12792
- NLM abbreviation
- Phys Rev B Condens Matter
- ISSN
- 0163-1829
- eISSN
- 1095-3795
- Publisher
- American Physical Society
- Language
- English
- Date published
- 11/2000
- Academic Unit
- Physics and Astronomy; Chemistry
- Record Identifier
- 9984622046902771
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