TY - JOUR
T1 - Rapid low-temperature synthesis of superconducting (Ba,K)BiO3 using molten KOH
AU - Kato, Masatsune
AU - Shitara, Seigo
AU - Nemoto, Ken Ichi
AU - Minakawa, Takefumi
AU - Noji, Takashi
AU - Koike, Yoji
PY - 2009/1/20
Y1 - 2009/1/20
N2 - Polycrystalline samples of perovskite Ba1-xKxK xBiO3 with a wide range of x have successfully been synthesized in a quite short heating time of several minutes at a temperature as low as 290°C using molten KOH. The powder X-ray diffraction patterns have revealed the formation of well-crystallized Ba1-xK xBiO3. The maximum value of the superconducting transition temperature Is ∼30 K observed at x ∼ 0.34 in the magnetic susceptibility measurements. The superconducting volume fraction drastically decreases for x < 0.37. These results are in good agreement with those of samples obtained by the conventional solid-state reaction method.
AB - Polycrystalline samples of perovskite Ba1-xKxK xBiO3 with a wide range of x have successfully been synthesized in a quite short heating time of several minutes at a temperature as low as 290°C using molten KOH. The powder X-ray diffraction patterns have revealed the formation of well-crystallized Ba1-xK xBiO3. The maximum value of the superconducting transition temperature Is ∼30 K observed at x ∼ 0.34 in the magnetic susceptibility measurements. The superconducting volume fraction drastically decreases for x < 0.37. These results are in good agreement with those of samples obtained by the conventional solid-state reaction method.
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U2 - 10.1143/JJAP.48.010214
DO - 10.1143/JJAP.48.010214
M3 - Article
AN - SCOPUS:59749103485
VL - 48
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 1
M1 - 010214
ER -