Superconductivity in the metallic–oxidiz
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N.S. Sidorov; A.V. Palnichenko; S.S. Khasanov
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Article
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2010
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Elsevier Science
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English
⚖ 608 KB
Superconductivity at 20-34 K in the interface formed by metallic and oxidized sodium has been observed by ac magnetic susceptibility measurements. By means of X-ray diffraction measurements, it has been found that the oxidized sodium layer consists of a mixture of Na 2 O, Na 2 O 2 , NaO 2 and NaO 3