Measurement of the penetration depth of superconducting thin films by optoelectronic sampling techniques

The magnetic penetration depth of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) thin films has been determined as a function of temperature by using picosecond optoelectronic sampling techniques. Electrical pulses of 8 ps full width at half maximum were generated on photoconductive switches by a mo...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 1997-06, Vol.7 (2), p.1612-1615
Hauptverfasser:	Shinho Cho, Erlig, H., Shamino Wang, Fetterman, H.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic films Magnetic properties Optical pulse generation Photoconductivity Physics Properties of type I and type II superconductors Sampling methods Space vector pulse width modulation Superconducting magnets Superconducting thin films Superconductivity Switches Temperature Yttrium barium copper oxide
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Zusammenfassung:	The magnetic penetration depth of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) thin films has been determined as a function of temperature by using picosecond optoelectronic sampling techniques. Electrical pulses of 8 ps full width at half maximum were generated on photoconductive switches by a mode-locked Nd:YAG pumped dye laser and propagated on superconducting delay lines which were 250 mm in length. The measured behavior at low temperature (T
ISSN:	1051-8223 1558-2515
DOI:	10.1109/77.620885