Electromagnetic response of static and fluctuating stripes in cuprate superconductors.
Using infrared spectroscopy, we found that changes in the in-plane charge dynamics attributable to static stripe order in La(1.275)Nd(0.6)Sr(0.125)CuO(4) or superconductivity in La(1.875)Sr(0.125)CuO(4) are confined to energies smaller than 100 cm(-1). An absorption peak in the low- omega conductivity of the Nd-doped compound is suggestive of localization effects due to the reduced dimensionality of static charge stripes. Neither superconductivity nor static stripe ordering has a noticeable effect on the depression of the scattering rate at omega<1000 cm(-1) characteristic of the pseudogap state in other classes of moderately doped cuprates.
Dumm
M
M
Department of Physics, University of California at San Diego, La Jolla, California 92093-0319, USA. dumm@pi1.physik.uni-stuttgart.de
Basov
D N
DN
Komiya
Seiki
S
Abe
Yasushi
Y
Ando
Yoichi
Y