Electric-field-induced domain evolution in ferroelectric ultrathin films

被引：120

作者：

Lai, BK ^{[1
]}

Ponomareva, I ^{[1
]}

Naumov, II ^{[1
]}

Kornev, I ^{[1
]}

Fu, HX ^{[1
]}

Bellaiche, L ^{[1
]}

Salamo, GJ ^{[1
]}

机构：

[1] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.96.137602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electric-field-induced evolution of the recently discovered periodic 180 degrees nanostripe domain structure is predicted in epitaxial Pb(Zr0.5Ti0.5)O-3 ultrathin films from first principles. This evolution involves (1) the lateral growth of majority dipole domains at the expense of minority domains with the overall stripe periodicity remaining unchanged, (2) the creation of surface-avoiding nanobubbles, and (3) the formation of a single monodomain state. Analogies and differences (i) with ferroelectric thin films made of BaTiO3 and (ii) with ferromagnetic thin films under magnetic field are discussed.

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