Infrared signatures of charge stripes in La(2-x)Sr(x)CuO(4)

Details Infrared signatures of charge stripes in La(2-x)Sr(x)CuO(4) Infrared signatures of charge stripes in La(2-x)Sr(x)CuO(4)

2002-03-27

arxiv.org/abs/cond-mat/0203572v1

Phys. Rev. Lett. 90, 037002 (2003)

Physics

Condensed Matter

Superconductivity

9 pages including figs. in pdf format

Scientific paper

10.1103/PhysRevLett.90.037002

The in-plane optical conductivity of seven La(2-x)Sr(x)CuO(4) single crystals with x between 0 and 0.15 has been studied from 30 to 295 K. All doped samples exhibit strong peaks in the far-infrared, which closely resemble those observed in Cu-O "ladders" with one-dimensional charge-ordering. The behavior with doping and temperature of the peak energy, width, and intensity allows us to conclude that we are observing charge stripes dynamics in La(2-x)Sr(x)CuO(4) on the fast time scale of infrared spectroscopy.

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