Transverse Josephson Plasma Mode in T* Phase SmLa1−xSrxCuO4−δ Single Crystals
H. Shibata
DOI 10.1103/PhysRevLett.86.2122 · Physical Review Letters
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Abstract
Far-infrared reflectivity along the c axis in T* phase SmLa1−xSrxCuO4−δ single crystals is measured down to 8cm−1. Below Tc, the conductivity peak is observed at 25cm−1 for x=0.15 ( Tc=30K) along with two reflectivity edges at 13 and 27cm−1. The conductivity peak is attributed to the transverse Josephson plasma mode between two longitudinal Josephson plasma modes, while the oscillator strength of the peak is found to be smaller than that calculated using the Josephson-coupled multilayer model. The difference is explained by assuming that only a few junctions at the disordered (La,Sr)2O2−δ block layer take part in the plasma oscillation with ωpI′=27cm−1.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| SmLa1-xSrxCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | unknown |
| SmLa1-xSrxCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | unknown |
| SmLa1-xSrxCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 25 | Pressure not reported | unknown |
| SmLa1-xSrxCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 25 | Pressure not reported | unknown |
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