Dynamic observation of a microelectric field in an oxide superconducting material by electron interference microscopy

By using an electron interference microscope, we successfully observed a leakage microelectric field near the surface of the oxide superconducting material, YBa 2Cu 3O 7 (Y123). Cooling down the specimen below T c with a liquid helium specimen holder, it was dynamically observed using a TV camera th...

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Veröffentlicht in:	Ultramicroscopy 1994, Vol.54 (2), p.345-350
Hauptverfasser:	Ogai, Keiko, Kimura, Yoshihide, Shimizu, Ryuichi
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cuprates superconductors (high tc and insulating parent compounds) Exact sciences and technology General properties correlations between physical properties in normal and superconducting states High-Tc compounds Physics Properties of type I and type II superconductors Superconductivity Y-based cuprates
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Zusammenfassung:	By using an electron interference microscope, we successfully observed a leakage microelectric field near the surface of the oxide superconducting material, YBa 2Cu 3O 7 (Y123). Cooling down the specimen below T c with a liquid helium specimen holder, it was dynamically observed using a TV camera that the electric field in Y123 disappeared and the superconducting transition caused a drastic change of the electromagnetic field in Y123.
ISSN:	0304-3991 1879-2723
DOI:	10.1016/0304-3991(94)90134-1