We have measured the ab-plane resistivity of La2−xSrxCuO4 single crystals with small Sr content (x=0.052÷0.075) between 4.2 and 300 K by using the AC Van der Pauw technique. As recently suggested by Ichikawa et al., the deviation from the linearity of the πab(T) curve starting at a temperature Tch can be interpreted as due to a progressive slowing down of the fluctuations of pre-formed charge stripes. An electronic transition of the stripes to a more ordered phase could instead be responsible for some very sharp anomalies present in the πab(T) of superconducting samples just above Tc.

ab-plane resistivity and possible charge stripe ordering in strongly underdoped La2-xSrxCuO4 single crystals / Gonnelli, Renato; V. A., Stepanov; A., Morello; Ummarino, Giovanni; Daghero, Dario; Natale, Luca; Francesca, Licci; Ubertalli, Graziano. - In: PHYSICA. C, SUPERCONDUCTIVITY. - ISSN 0921-4534. - STAMPA. - 341-348:(2000), pp. 1779-1780. [10.1016/S0921-4534(00)01037-6]

ab-plane resistivity and possible charge stripe ordering in strongly underdoped La2-xSrxCuO4 single crystals

GONNELLI, Renato;UMMARINO, Giovanni;DAGHERO, Dario;NATALE, LUCA;UBERTALLI, Graziano
2000

Abstract

We have measured the ab-plane resistivity of La2−xSrxCuO4 single crystals with small Sr content (x=0.052÷0.075) between 4.2 and 300 K by using the AC Van der Pauw technique. As recently suggested by Ichikawa et al., the deviation from the linearity of the πab(T) curve starting at a temperature Tch can be interpreted as due to a progressive slowing down of the fluctuations of pre-formed charge stripes. An electronic transition of the stripes to a more ordered phase could instead be responsible for some very sharp anomalies present in the πab(T) of superconducting samples just above Tc.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1402390
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