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Start Over Author "Yu, H. H." Journal applied physics letters
4 results on '"Yu, H. H."'

4. Evidence of nanosecond-scale charge injection during domain switching from fast imprint measurements in Pb(Zr,Ti)O3 thin films at low temperatures.

Author

Jiang, A. Q., Yu, H. H., and Tang, T. A.

Subjects
*ELECTRIC potential, *LOW temperatures, *THIN films, *CAPACITORS, *ELECTRIC equipment
Abstract

Fast imprint measurements of coercive voltages from domain switching current after various dc biasing voltages at low temperatures evidence multilevel interfacial charge injections in Pt/IrO2/Pb(Zr0.4Ti0.6)O3/IrO2/Pt thin-film capacitors with suppressed thermal noises. Initially, a quick charge injection occurs during domain switching with injection current equal to domain switching current. After completion of polarization reversal, a slow charge injection continues with ultimate injected charge density nearly independent of biasing voltages at 77.6 K. This is very different from normal observations of a semilogarithmic time dependence of the coercive voltage at room temperature above 1 μs. [ABSTRACT FROM AUTHOR]

Published
2009
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