Nonlinear Dynamics of Domain-Wall Propagation in Epitaxial Ferroelectric Thin Films

被引：163

作者：

Jo, J. Y. ^{[1
,2
]}

Yang, S. M. ^{[1
,2
]}

Kim, T. H. ^{[1
,2
]}

Lee, H. N. ^{[3
]}

Yoon, J. -G. ^{[4
]}

Park, S. ^{[5
]}

Jo, Y. ^{[5
]}

Jung, M. H. ^{[5
]}

Noh, T. W. ^{[1
,2
]}

机构：

[1] Seoul Natl Univ, ReCOE, Seoul 151747, South Korea

[2] Seoul Natl Univ, FPRD, Dept Phys & Astron, Seoul 151747, South Korea

[3] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[4] Univ Suwon, Dept Phys, Gyeonggi Do 445743, South Korea

[5] Korea Basic Sci Inst, Quantum Mat Res Team, Taejon 305333, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 04期

关键词：

Ferroelectricity - Ferroelectric thin films - Domain walls - Film growth - Epitaxial growth - Temperature - Velocity;

D O I：

10.1103/PhysRevLett.102.045701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigated the ferroelectric domain-wall propagation in epitaxial Pb(Zr,Ti)O-3 thin film over a wide temperature range (3-300 K). We measured the domain-wall velocity under various electric fields and found that the velocity data is strongly nonlinear with electric fields, especially at low temperature. We found that, as one of surface growth issues, our domain-wall velocity data from ferroelectric epitaxial film could be classified into the creep, depinning, and flow regimes due to competition between disorder and elasticity. The measured values of velocity and dynamical exponents indicate that the ferroelectric domain walls in the epitaxial films are fractal and pinned by a disorder-induced local field.

引用

页数：4

共 15 条

[1]

[Anonymous], 1995, FRACTAL CONCEPT SURF, DOI DOI 10.1017/CBO9780511599798

[2]

[Anonymous], 2003, CRITICAL PHENOMENA N

[3] Fractal dimension and size scaling of domains in thin films of multiferroic BiFeO3 [J].

Catalan, G. ;

Bea, H. ;

Fusil, S. ;

Bibes, M. ;

Paruch, P. ;

Barthelemy, A. ;

Scott, J. F. .

PHYSICAL REVIEW LETTERS, 2008, 100 (02)

[4] Creep and depinning in disordered media [J].

Chauve, P ;

Giamarchi, T ;

Le Doussal, P .

PHYSICAL REVIEW B, 2000, 62 (10) :6241-6267

[5] Physics of thin-film ferroelectric oxides [J].

Dawber, M ;

Rabe, KM ;

Scott, JF .

REVIEWS OF MODERN PHYSICS, 2005, 77 (04) :1083-1130

[6] FERROELECTRIC DOMAIN SWITCHING [J].

ISHIBASHI, Y ;

TAKAGI, Y .

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

[7] Domain switching kinetics in disordered ferroelectric thin films [J].

Jo, J. Y. ;

Han, H. S. ;

Yoon, J. -G. ;

Song, T. K. ;

Kim, S. -H. ;

Noh, T. W. .

PHYSICAL REVIEW LETTERS, 2007, 99 (26)

[8] Observation of inhomogeneous domain nucleation in epitaxial Pb(Zr,Ti)O3 capacitors [J].

Kim, D. J. ;

Jo, J. Y. ;

Kim, T. H. ;

Yang, S. M. ;

Chen, B. ;

Kim, Y. S. ;

Noh, T. W. .

APPLIED PHYSICS LETTERS, 2007, 91 (13)

[9] Suppressed dependence of polarization on epitaxial strain in highly polar ferroelectrics [J].

Lee, Ho Nyung ;

Nakhmanson, Serge M. ;

Chisholm, Matthew F. ;

Christen, Hans M. ;

Rabe, Karin M. ;

Vanderbilt, David .

PHYSICAL REVIEW LETTERS, 2007, 98 (21)

[10] Domain wall roughness in epitaxial ferroelectric PbZr0.2Ti0.8O3 thin films -: art. no. 197601 [J].

Paruch, P ;

Giamarchi, T ;

Triscone, JM .

PHYSICAL REVIEW LETTERS, 2005, 94 (19)

← 1 2 →