Ultrafast polarization switching in thin-film ferroelectrics

被引：252

作者：

Li, J ^{[1
]}

Nagaraj, B ^{[1
]}

Liang, H ^{[1
]}

Cao, W ^{[1
]}

Lee, CH ^{[1
]}

Ramesh, R ^{[1
]}

机构：

[1] Univ Maryland, Mat Res Sci & Engn Ctr, College Pk, MD 20742 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 07期

关键词：

D O I：

10.1063/1.1644917

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present an experimental approach to study the ultrafast polarization switching dynamics in thin-film ferroelectrics. A semiconductor photoconductive switch with femtosecond laser illumination is used as a "pulse generator" to produce jitter-free, sub-100 ps rise time step-function-like electrical pulses. Quantitative measurements yield a polarization switching time, t(s), of similar to220 ps when measured with a 5 V, 68 ps rise time input electrical pulse. Modeling of the switching transients using the Merz-Ishibashi model and Merz-Shur model of switching kinetics yields a quantitative estimate of the characteristic switching time constant, t(0), of similar to70-90 ps. (C) 2004 American Institute of Physics.

引用

页码：1174 / 1176

页数：3

共 16 条

[1]

Bartic TA, 1998, INTEGR FERROELECTR, V22, P691

[2]

Fatuzzo E., 1967, Ferroelectricity

[3] A MODEL OF POLARIZATION REVERSAL IN FERROELECTRICS [J].

ISHIBASHI, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (11) :4148-4154

[4] FERROELECTRIC DOMAIN SWITCHING [J].

ISHIBASHI, Y ;

TAKAGI, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1971, 31 (02) :506-+

[5]

Larsen P. K., 1992, P 8 IEEE INT S APPL, P217

[6] NANOSECOND SWITCHING OF THIN FERROELECTRIC-FILMS [J].

LARSEN, PK ;

KAMPSCHOER, GLM ;

ULENAERS, MJE ;

SPIERINGS, GACM ;

CUPPENS, R .

APPLIED PHYSICS LETTERS, 1991, 59 (05) :611-613

[7]

LARSEN PK, 1995, SCI TECHNOLOGY ELECT, V284, P201

[8]

Lohse O., 1998, Integrated Ferroelectrics, V22, P123, DOI 10.1080/10584589808208035

[9] SWITCHING TIME IN FERROELECTRIC BATIO3 AND ITS DEPENDENCE ON CRYSTAL THICKNESS [J].

MERZ, WJ .

JOURNAL OF APPLIED PHYSICS, 1956, 27 (08) :938-943

[10] DOMAIN FORMATION AND DOMAIN WALL MOTIONS IN FERROELECTRIC BATIO3 SINGLE CRYSTALS [J].

MERZ, WJ .

PHYSICAL REVIEW, 1954, 95 (03) :690-698

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