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Transient Photoinduced Conductivity in Single-Crystals of YBa2Cu3O7-d: Photodoping to the Metallic State
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yu, G. | - |
dc.contributor.author | Lee, Changhee | - |
dc.contributor.author | Heeger, A. J. | - |
dc.contributor.author | Herron, N. | - |
dc.contributor.author | McCarron, E. M. | - |
dc.date.accessioned | 2009-11-23T05:35:25Z | - |
dc.date.available | 2009-11-23T05:35:25Z | - |
dc.date.issued | 1991-10-28 | - |
dc.identifier.citation | Phys. Rev. Lett. 67, 2581 | en |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | https://hdl.handle.net/10371/13779 | - |
dc.description.abstract | The temperature dependences of the transient photoinduced conductivity in YBa2Cu3O7-δ at different light intensities (IL) and of the doping-induced conductivity at different δ are similar, indicative of photodoping. For δ≊0.7, signatures of the photoinduced transition to metallic behavior are observed at IL>5×1015 photons/cm2; the deep resistivity minimum below 100 K, reminiscent of the onset of superconductivity in granular superconductors and in inhomogeneously doped samples, is interpreted in terms of phase separation and metallic-droplet formation. A longitudinal magnetic field (≤0.5 T) reduces both the resistivity minimum and the superlinear contribution to the transient photoconductance. For δ≊0.6, the lifetime of the photoexcited state is enhanced by nearly 3 orders of magnitude at high excitation levels, indicative of metastability. | en |
dc.language.iso | en | - |
dc.publisher | American Physical Society | en |
dc.title | Transient Photoinduced Conductivity in Single-Crystals of YBa2Cu3O7-d: Photodoping to the Metallic State | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 이창희 | - |
dc.identifier.doi | 10.1103/PhysRevLett.67.2581 | - |
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