Growth and Characterization of Bi$_{2+x}$Sr$_{2-x}$CuO$_{6+δ}$ Single Crystals

Huiqian Luo; Lei Fang; Gang Mu; Hai-Hu Wen

doi:10.1016/j.jcrysgro.2007.02.043

paper

Growth and Characterization of Bi $_{2 + x}$ Sr $_{2 - x}$ CuO $_{6 + δ}$ Single Crystals

arXiv:cond-mat/0611349 · doi:10.1016/j.jcrysgro.2007.02.043

Abstract

High-quality Bi $_{2 + x}$ Sr $_{2 - x}$ CuO $_{6 + δ}$ (0 $<$ x $\leq$ 0.5) single crystals have been grown successfully using the travelling-solvent floating-zone(TSFZ) technique. The samples with $x >$ 0.05 are in the underdoped level. The structure of these crystals was investigated by X-ray diffraction. The evolution of c-axis lattice parameters with varied \emph{x} is displayed, which is strongly associated with the behavior of $T_{c}$ . The crystals exhibit superconducting transitions with $T_{c} = 9$ to 0.8 K for the samples with $x = 0.05$ to 0.20, while for samples with $x = 0.25$ and above no superconductivity was discovered down to 1.6 K. The resistivity of samples with $x$ =0.31, 0.40 and 0.50 exhibits a drastic divergence as temperature approaches 0 K.

6 pages,7 figures. submitted to Journal of Crystal Growth

References in corpus (1)

Enhancement of electronic inhomogeneities due to out-of-plane disorder in Bi_2Sr_2CuO_{6+delta} superconductors observed by scanning tunneling spectroscopy

Growth and Characterization of Bi2+x​Sr2−x​CuO6+δ​ Single Crystals

Abstract

References in corpus (1)

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Growth and Characterization of Bi $_{2 + x}$ Sr $_{2 - x}$ CuO $_{6 + δ}$ Single Crystals