Charge stripes seen with x-rays in La_(1.45)Nd_(0.4)Sr_(0.15)CuO_(4)

Details Charge stripes seen with x-rays in La_(1.45)Nd_(0.4)Sr_(0.15)CuO_(4) Charge stripes seen with x-rays in La_(1.45)Nd_(0.4)Sr_(0.15)CuO_(4)

1999-04-27

arxiv.org/abs/cond-mat/9904383v1

Physics

Condensed Matter

Superconductivity

8 pages

Scientific paper

10.1007/s100510051032

Superstructure reflections due to the ordering of holes into stripes in La_(1.45)Nd_(0.4)Sr_(0.15)CuO_4 have been studied with high energy x-ray diffraction. These reflections have been observed clearly for the first time in a sample which is superconducting at low temperatures (T_c = 10 K). The stripe peaks vanish above 62(5) K whereas the magnetic signal of the stripe ordering which has been seen with neutrons before is already suppressed at 45 K. Our results confirm that the ordering of spins and holes is driven by the charges as it is found in the case of La_(1.6-x)Nd_(0.4)Sr_(x)CuO_(4) at the doping level of x = 0.12.

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