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Ultrafast pump-probe spectroscopic signatures of superconducting and pseudogap phases in YBa2Cu3O7−δ films
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10.1063/1.4793012
/content/aip/journal/jap/113/8/10.1063/1.4793012
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/8/10.1063/1.4793012
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature-dependent resistance of the YBCO film. The transition temperatures of the superconducting phase and the pseudogap phase are about 93 K and 152 K, respectively.

Image of FIG. 2.
FIG. 2.

(a) The measured signal as a function of delay time at different temperatures. The solid black lines are the fitted curves including the thermal equilibrium function. The pump flux is ∼0.5 mJ/cm2. (b) An example of the treated data after subtraction of the thermal equilibrium contribution. The rescaled data can be well reproduced by the conventional RT model. (c) The superconducting gap value is plotted as a function of time. Inset shows therescaled data with fitted curves to the RTE at 90 K and 120 K.

Image of FIG. 3.
FIG. 3.

(a) The rescaled data at different temperatures. (b) The maximum change at zero delay (Exp) is plotted as a function of temperature. The amplitudes of SC (A1) and PG (A2) components are compared with the theoretical value. (c) The relaxation lifetimes (τ1 and τ2) versus temperature.

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/content/aip/journal/jap/113/8/10.1063/1.4793012
2013-02-22
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast pump-probe spectroscopic signatures of superconducting and pseudogap phases in YBa2Cu3O7−δ films
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/8/10.1063/1.4793012
10.1063/1.4793012
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