ISSN:
1572-9605
Keywords:
(La, Ca)2CaCu2O6, single crystal
;
TSFZ technique
;
oxygen HIP
;
electrical anisotropy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract Large single crystals of (La1−x Ca x )2CaCu2O6 were synthesized by the travelling solvent floating zone (TSFZ) technique. The dimension of the grown boules was typically 4 mmφ×30 mm long with thec-axis perpendicular to the growth direction. After oxygen loading at 1080°C in 400 atm of O2, they became superconductive with a sharp transition at around 50 K. The resistivity was metallic both along thec-axis and within theab-plane, with an anisotropy ratio ofγ 2≡(ρ c/ρ ab ) ∼ 50 which is almost independent of temperature. Details of the crystal growth, heat treatment procedures, and the results of electrical and magnetic property measurements are presented.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00724560
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