ISSN:
1573-7357
Keywords:
74.25.Fy
;
74.62.Dh
;
74.72.Dn
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The effects of substitution of Y or Bi on the low-temperature structural phase transition, electronic anomaly and superconductivity have been studied in La2-y-xYyBaxCuOφ La2-y-xBiyBaxCuO4 and La1.9-y-xTb0.1BiySrxCuO4 with x = 1/8. Moreover, an electronic anomaly, which is analogous to those observed in La2−xBaxCuO4 and La1.6-xNd0.4SrxCuO4 with x ∼ 1/8, has been found below about 60 K in the thermoelectric power measurements for the Zn-substituted La2−xSrxCu1−yZnyO4 with x ∼ 0.115 and y = 0.01 – 0.02. These experimental results support the conclusions by Tranquada et al. that static order of the stripe correlations of holes and spins, owing to pinning by the low-temperature structure or impurities (Zn in this case), is the origin of the electronic anomaly, leading to the suppression of superconductivity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00768405
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