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Author  |
Gol'tsman, G. N.; Kouminov, P.; Goghidze, I.; Gershenzon, E. M. | ||||
| Title | Nonequilibrium kinetic inductive response of YBaCuO thin films to low-power laser pulses | Type | Journal Article | ||
| Year | 1994 | Publication | Phys. C: Supercond. | Abbreviated Journal | Phys. C: Supercond. |
| Volume | 235-240 | Issue | Pages | 1979-1980 | |
| Keywords | YBCO HTS KID | ||||
| Abstract | Transient non-equilibrium kinetic inductive voltage response of YBaCuO thin films to 20 ps pulses of YAG:Nd laser radiation with 0.63 μm and 1.5 μm wavelength has been revealed. By increasing the sensitivity of 100 ps resolution time registration system and diminishing light intensity (fluence 0.1-1 μJ2/cm2) and transport current (density j≤105 A/cm2) we observed a perculiar bipolar signal form with nearly equal amplitudes of each sign. The integration of the kinetic inductive response over time gives the result which is qualitatively of the same form as the response in the resistive and normal states: nonequilibrium picosecond scale component followed by bolometric nanosecond. Nonequilibrium response is interpreted as suppression of order parameter by excess of quasiparticles followed by a change in resistance in the resistive state and kinetic inductance in superconductive state. | ||||
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| ISSN | 0921-4534 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1634 | |||
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