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Electrical resistivity of the perovskite Ba1−xKxBiO3 (x ⩽ 0.15) under high pressure

✍ Scribed by Yoshinori Imai; Masatsune Kato; Takashi Noji; Yoji Koike; Masato Hedo; Yoshiya Uwatoko; Nobuo Mori

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
110 KB
Volume
426-431
Category
Article
ISSN
0921-4534

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✦ Synopsis

Electrical resistivity measurements of the insulating Ba 1Àx K x BiO 3 (x = 0, 0.15) under high pressure up to 8 GPa have been performed in order to search for the pressure-induced superconductivity, using a cubic-anvil pressure system. A polycrystal of BaBiO 3 has been prepared by the solid-state reaction method. A single crystal of Ba 0.85 K 0.15 BiO 3 has been synthesized by the electrochemical method from molten salts. The electrical resistivity of both compounds slightly decreases with increasing pressure. However, the temperature dependence still remains semiconductive and no superconductivity is observed.

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