Diamagnetism above T sub( c) in Underdoped Bi sub( 2.2)Sr sub( 1.8)Ca sub( 2)Cu sub( 3)O sub( 10+ delta )

Single crystals of ... (Bi2223) with x =0.2 were grown by a traveling solvent floating zone method in order to investigate the superconducting properties of highly underdoped Bi2223. Grown crystals were characterized by X-ray diffraction, DC susceptibility and resistivity measurements, confirming Bi...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2010-11, Vol.79 (11), p.1-1
Main Authors: Iye, Tetsuya, Nagatochi, Takenori, Ikeda, Ryusuke, Matsuda, Azusa
Format: Article
Language:English
Subjects:
Anisotropy
Carrier density
Crystals
Diamagnetism
Fluctuation
Partial pressure
Superconductivity
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Summary:Single crystals of ... (Bi2223) with x =0.2 were grown by a traveling solvent floating zone method in order to investigate the superconducting properties of highly underdoped Bi2223. Grown crystals were characterized by X-ray diffraction, DC susceptibility and resistivity measurements, confirming Bi2223 to be the main phase. The crystals were annealed under various oxygen partial pressures to adjust their carrier densities from optimally doped to highly underdoped. The fluctuation diamagnetic component above the superconducting transition temperature T c extracted from the anisotropic normal state susceptibilities ... ( T ) ( H ... c ) and ... ( T ) ( H ... c ) was found to increase with underdoping, suggesting a decrease in the superconducting dimensionality and/or increase in the fluctuating vortex liquid region. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0031-9015
1347-4073