Metal-insulator transition in the S = 12
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M. Uehara; M. Ogawa; J. Akimitsu
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Article
📅
1995
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Elsevier Science
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English
⚖ 674 KB
We have found that the (Sro.4Ca0.6)14Cu24\_xCOxO41\_ 8 system shows a metal-insulator transition at Co content x between 4.0 and 4.5 after high-pressure 0 2 annealing. For the as-sintered samples the T dependence of the electrical resistivities is semiconducting over the whole x range and the associ