Transient electric field generated by nonequilibrium states in superconducting Pb films

Nonequilibrium states can be excited in superconducting Pb films with laser pulses of picosecond duration. We used the technique of electro-optic sampling to observe the transient electric field generated by these states in the presence of a supercurrent. It follows from our experiment that the swit...

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Veröffentlicht in:	Applied physics letters 1991-12, Vol.59 (25), p.3333-3335
Hauptverfasser:	XIN-HUA XU, JUHASZ, T, BRON, W. E
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Metals. Metallurgy Physics Properties of type I and type II superconductors Superconductivity
Online-Zugang:	Volltext
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Zusammenfassung:	Nonequilibrium states can be excited in superconducting Pb films with laser pulses of picosecond duration. We used the technique of electro-optic sampling to observe the transient electric field generated by these states in the presence of a supercurrent. It follows from our experiment that the switching between the superconducting and normal states occurs within 1 ps after the laser excitation.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.105722