Temperature- and field-dependent leakage current of Pt/(Ba0.7Sr0.3)TiO3 interface

Temperature- and field-dependent leakage current of Pt/(Ba0.7Sr0.3)TiO3 interface

Pt/(Ba 0.7 Sr 0.3 ) TiO 3 ( BST)/YBa 2 Cu 3 O 7− x (YBCO ) capacitors on SrTiO3 substrates were fabricated. The temperature and field dependence of the leakage current of Pt/BST interface were studied in the temperature range from 100 K to 320 K and in an electric field up to 3 MV/cm. For a middle e...

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Veröffentlicht in:Applied physics letters 2003-08, Vol.83 (8), p.1611-1613
Hauptverfasser: Yang, Hao, Chen, Bin, Tao, Kun, Qiu, Xianggang, Xu, Bo, Zhao, Bairu
Format: Artikel
Sprache:eng
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Zusammenfassung:Pt/(Ba 0.7 Sr 0.3 ) TiO 3 ( BST)/YBa 2 Cu 3 O 7− x (YBCO ) capacitors on SrTiO3 substrates were fabricated. The temperature and field dependence of the leakage current of Pt/BST interface were studied in the temperature range from 100 K to 320 K and in an electric field up to 3 MV/cm. For a middle electric field (1.8 MV/cm), the leakage mechanism is governed by the Fowler–Nordheim tunneling in the whole measured temperature range.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1604181