Electromagnetic Response of Static and Fluctuating Stripes in Cuprate Superconductors
M. Dumm, D. N. Basov, Seiki Komiya, Yasushi Abe, Yoichi Ando
DOI 10.1103/PhysRevLett.88.147003 · Physical Review Letters
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Abstract
Using infrared spectroscopy, we found that changes in the in-plane charge dynamics attributable to static stripe order in La1.275Nd0.6Sr0.125CuO4 or superconductivity in La1.875Sr0.125CuO4 are confined to energies smaller than 100cm−1. An absorption peak in the low- ω 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 ω<1000cm−1 characteristic of the pseudogap state in other classes of moderately doped cuprates.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.875Sr0.125CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 32 | Pressure not reported | onset |
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