Direct Observation of the Proliferation of Ferroelectric Loop Domains and Vortex-Antivortex Pairs

被引：162

作者：

Chae, S. C. ^{[1
]}

Lee, N. ^{[1
]}

Horibe, Y. ^{[1
]}

Tanimura, M. ^{[3
]}

Mori, S. ^{[2
,4
]}

Gao, B. ^{[1
]}

Carr, S. ^{[1
]}

Cheong, S. -W. ^{[1
]}

机构：

[1] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA

[2] Osaka Prefecture Univ, Dept Mat Sci, Sakai, Osaka 5998531, Japan

[3] NISSAN ARC Ltd, Res Dept, Yokosuka, Kanagawa 2370061, Japan

[4] CREST, JST, Sakai, Osaka 5998531, Japan

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 16期

基金：

美国国家科学基金会;

关键词：

PHASE-TRANSITIONS; 2-DIMENSIONAL SYSTEMS; YMNO3; DENSITY; GROWTH; MODEL;

D O I：

10.1103/PhysRevLett.108.167603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discovered stripe patterns of trimerization-ferroelectric domains in hexagonal REMnO3 (RE = Ho, ..., Lu) crystals (grown below ferroelectric transition temperatures (T-c), reaching up to 1435 degrees C), in contrast with the vortex patterns in YMnO3. These stripe patterns roughen with the appearance of numerous loop domains through thermal annealing just below T-c, but the stripe domain patterns turn to vortex-antivortex domain patterns through a freezing process when crystals cross T-c even though the phase transition appears to not be Kosterlitz-Thouless-type. The experimental systematics are compared with the results of our six-state clock model simulation and also the Kibble-Zurek mechanism for trapped topological defects.

引用

页数：5

共 30 条

[11] High-temperature phase transitions of hexagonal YMnO3 [J].

Gibbs, Alexandra S. ;

Knight, Kevin S. ;

Lightfoot, Philip .

PHYSICAL REVIEW B, 2011, 83 (09)

[12] DOMAIN-GROWTH KINETICS FOR THE Q-STATE POTTS-MODEL IN 2-DIMENSION AND 3-DIMENSION [J].

GREST, GS ;

ANDERSON, MP ;

SROLOVITZ, DJ .

PHYSICAL REVIEW B, 1988, 38 (07) :4752-4760

[13] THEORY OF 2-DIMENSIONAL MELTING [J].

HALPERIN, BI ;

NELSON, DR .

PHYSICAL REVIEW LETTERS, 1978, 41 (02) :121-124

[14] DENSITY-FUNCTIONAL THEORY OF FREEZING OF VORTEX LIQUID IN QUASI-2-DIMENSIONAL SUPERCONDUCTORS [J].

HERBUT, IF ;

TESANOVIC, Z .

PHYSICAL REVIEW LETTERS, 1994, 73 (03) :484-487

[15]

ISMAILZA IG, 1965, FIZ TVERD TELA+, V7, P236

[16] DYNAMICS OF THE ORIENTATIONAL ROUGHENING TRANSITION [J].

KAHNG, B ;

PARK, K .

PHYSICAL REVIEW B, 1993, 47 (10) :5583-5588

[17] DOMAIN GROWTH IN THE CLOCK MODEL [J].

KASKI, K ;

GRANT, M ;

GUNTON, JD .

PHYSICAL REVIEW B, 1985, 31 (05) :3040-3047

[18] Dielectric and magnetic anomalies and spin frustration in hexagonal RMnO3 (R = Y, Yb, and Lu) -: art. no. 104419 [J].

Katsufuji, T ;

Mori, S ;

Masaki, M ;

Moritomo, Y ;

Yamamoto, N ;

Takagi, H .

PHYSICAL REVIEW B, 2001, 64 (10)

[19] TOPOLOGY OF COSMIC DOMAINS AND STRINGS [J].

KIBBLE, TWB .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1976, 9 (08) :1387-1398

[20] ORDERING, METASTABILITY AND PHASE-TRANSITIONS IN 2 DIMENSIONAL SYSTEMS [J].

Kosterlitz, JM ;

Thouless, DJ .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1973, 6 (07) :1181-1203

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