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Synthesis, Structure, and Properties of Layered Sulfide BaCo1−xCuxS2−y

✍ Scribed by W.J. Zhu; S.T. Ting; H.H. Feng; P.H. Hor

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
229 KB
Volume
138
Category
Article
ISSN
0022-4596

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✦ Synopsis

The Cu-doped layered cobalt sulfides, BaCo 1؊x Cu x S 2؊x/2 and BaCo 1؊x Cu x S 2 , have been synthesized with the single-phase region 04x40.5. Both series are semiconducting. The resistivity of BaCo 1؊x Cu x S 2 decreases drastically with increasing Cu content. Increasing sulfur content has a similar effect in BaCo 1؊x Cu x S 2؊x/2؉y with the fixed Cu concentration. In contrast, the resistivity of BaCo 1؊x Cu x S 2؊x/2 shows much less variation for different doping levels. Evolution from an antiferromagnetic to spin-glass state was observed for both series.

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