Abstract
We report the muon spin rotation experiments on Zn substituted La1-x Srx CuO4, for four zinc concentrations y=0.0,0.0025,0.005,0.01, at strontium concentrations x=0.15,0.20. We find that T_ c in the optimally doped (x=0.15) and overdoped (x=0.20) 2:1:4 decreases linearly with increasing zinc concentration. Plotted against the planar zinc concentration, the Tc’s of both series seem to fall on the same line. The superconducting carrier density/effective mass ratio, n_ s/m*, at first decreases linearly, rising above this line for higher zinc concentrations. This behavior may result from the localization of carriers in an area \xiab around each zinc atom.
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References
G. **ao et al., Phys. Rev. B 42 (1990) 8752.
D.A. Bonn et al., Phys. Rev. B 50 (1994) 4051.
Y. Fukuzumi et al., Phys. Rev. B 76 (1996) 684.
P.J. Hirschfeld and N. Goldenfeld, Phys. Rev. B 48 (1993) 4219.
Ye Sun and K. Maki, Phys. Rev. B 51(9) (1995) 5059.
J.W. Loram et al., in: Proceedings: 10th Annual HTS Workshop, in press, 1996.
Y. Fukuzumi et al., Phys. Rev. B 76 (1996) 684.
T. Ito et al., Nature 350 (1991) 596.
Y. Ando et al., Phys. Rev. Lett. 75 (1995) 4662.
P.G. De Gennes, Superconductivity of Metals and Alloys(W.A. Benjamin, New York, 1966) ch. 1.
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Nachumi, B., Keren, A., Kojima, K. et al. La2-xSrxCu1-yZnyO4: Tc and ns/m* correlations seen with muon spin rotation. Hyperfine Interactions 105, 125–130 (1997). https://doi.org/10.1023/A:1012674531582
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DOI: https://doi.org/10.1023/A:1012674531582