Surface superconductivity in a polycrystalline MgB2

We report results of a dc magnetic and ac linear low-frequency study of a polycrystalline MgB2 sample. AC susceptibility measurements at low frequencies, performed under dc fields parallel to the sample surface, provide clear evidence for surface superconducting states in a polycrystalline MgB2.

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Bibliographische Detailangaben
Veröffentlicht in:	Physica. C, Superconductivity Superconductivity, 2007-09, Vol.460-462 (1), p.576-578
Hauptverfasser:	Tsindlekht, Menachem I., Leviev, Grigory I., Genkin, Valery M., Felner, Israel, Mikheenko, Pavlo, Abell, J. Stuart
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 Physics Superconductivity
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Beschreibung
Zusammenfassung:	We report results of a dc magnetic and ac linear low-frequency study of a polycrystalline MgB2 sample. AC susceptibility measurements at low frequencies, performed under dc fields parallel to the sample surface, provide clear evidence for surface superconducting states in a polycrystalline MgB2.
ISSN:	0921-4534 1873-2143
DOI:	10.1016/j.physc.2007.04.212