Interfacially Controlled Transient Photoinduced Superconductivity
V. Peña, T. Gredig, J. Santamaria, Ivan. K. Schuller
DOI 10.1103/PhysRevLett.97.177005 · Physical Review Letters
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Abstract
We report on a large transient photoinduced enhancement of the superconducting critical temperature (ΔTc=23 K) in epitaxial YBa2Cu3O6.7/La0.7Ca0.3MnO3 bilayers upon visible light illumination. The effect relaxes with a characteristic time of 100 s at low temperatures, which is 4 orders of magnitude faster than the persistent photoconductivity or persistent photoinduced superconductivity previously found in single high-Tc superconducting films. This result is discussed in terms of light induced charge transfer through the interface similar to what happens in semiconductor junctions.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6.7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 43 | Pressure not reported | unknown |
| YBa2Cu3O6.7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 66 | Pressure not reported | unknown |
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