Volume 81, Number 2, January 2008
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||14 December 2007|
Relationship between superfluid density at zero temperature and Tc of Bi2SrLaxCuO6+ (0.4 ≤ x ≤ 0.76) and Bi2Sr1.6La0.4CuZnyO6+ (0.0 ≤ y ≤ 0.015)
Department of Physics, Pusan National University - Busan 609-735, Korea
2 Department of Physics, West Verginia University - Morgantown, WV 26506-6315, USA
3 Department of Physics, Pukyung National University - Busan 608-737, Korea
Accepted: 19 November 2007
We have studied the relationship between superfluid density at zero temperature, , and superconducting transition temperature, Tc, for the underdoped Bi2SrLaxCuO6+ and nearly optimally doped Bi2Sr1.6La0.4CuZnyO6+, using isothermal reversible magnetization. In our study, we found that in Bi2SrLaxCuO6+ and Bi2Sr1.6La0.4CuZnyO6+ is proportional to , which is nearly in agreement with the relation suggested from the quantum criticality.
PACS: 74.25.Ha – Magnetic properties / 74.72.Hs – Bi-based cuprates / 74.25.Dw – Superconductivity phase diagrams
© EPLA, 2008
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