Controlling self-assembled perovskite-spinel nanostructures

被引：241

作者：

Zheng, Haimei ^{[1
]}

Zhan, Qian

Zavaliche, Florin

Sherburne, Matt

Straub, Florian

Cruz, Maria P.

Chen, Long-Qing

Dahmen, Uli

Ramesh, R.

机构：

[1] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[4] Natl Ctr Electron Microscopy, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

NANO LETTERS | 2006年 / 6卷 / 07期

关键词：

AB-INITIO; ORGANIZED GROWTH; SRTIO3; SURFACES; TRANSITIONS; CRYSTALS; BATIO3; ENERGY; FILMS; SHAPE;

D O I：

10.1021/nl060401y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a discovery that self-assembled perovskite-spinel nanostructures can be controlled simply by selecting single-crystal substrates with different orientations. In a model BiFeO3-CoFe2O4 system, a ( 001) substrate results in rectangular-shaped CoFe2O4 nanopillars in a BiFeO3 matrix; in contrast, a (111) substrate leads to triangular-shaped BiFeO3 nanopillars in a CoFe2O4 matrix, irrespective of the volume fraction of the two phases. This dramatic reversal is attributed to the surface energy anisotropy as an intrinsic property of a crystal.

引用

页码：1401 / 1407

页数：7

共 32 条

[1] Crystal morphology and surface structures of orthorhombic MgSiO3 perovskite [J].

Alfredsson, M ;

Brodholt, JP ;

Dobson, DP ;

Oganov, AR ;

Catlow, CRA ;

Parker, SC ;

Price, GD .

PHYSICS AND CHEMISTRY OF MINERALS, 2005, 31 (10) :671-682

[2] Faceting and wetting transitions of anisotropic interfaces and grain boundaries [J].

Blendell, JE ;

Carter, WC ;

Handwerker, CA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (07) :1889-1900

[3] Self-organized growth of nanostructure arrays on strain-relief patterns [J].

Brune, H ;

Giovannini, M ;

Bromann, K ;

Kern, K .

NATURE, 1998, 394 (6692) :451-453

[4] The oxidation of NiAl: What can we learn from ab initio calculations? [J].

Finnis, MW ;

Lozovoi, AY ;

Alavi, A .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2005, 35 :167-207

[5] Periodically ordered nanoscale islands and mesoporous films composed of nanocrystalline multimetallic oxides [J].

Grosso, D ;

Boissière, C ;

Smarsly, B ;

Brezesinski, T ;

Pinna, N ;

Albouy, PA ;

Amenitsch, H ;

Antonietti, M ;

Sanchez, C .

NATURE MATERIALS, 2004, 3 (11) :787-792

[6] ULTRANARROW LUMINESCENCE LINES FROM SINGLE QUANTUM DOTS [J].

GRUNDMANN, M ;

CHRISTEN, J ;

LEDENTSOV, NN ;

BOHRER, J ;

BIMBERG, D ;

RUVIMOV, SS ;

WERNER, P ;

RICHTER, U ;

GOSELE, U ;

HEYDENREICH, J ;

USTINOV, VM ;

EGOROV, AY ;

ZHUKOV, AE ;

KOPEV, PS ;

ALFEROV, ZI .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4043-4046

[7] QUANTUM MODEL FOR COMMENSURATE-INCOMMENSURATE TRANSITIONS [J].

HOWES, S ;

KADANOFF, LP ;

DENNIJS, M .

NUCLEAR PHYSICS B, 1983, 215 (02) :169-208

[8] Crystallographic facetting in solid-state reacted LiMn2O4 spinel powder [J].

Huang, MR ;

Lin, CW ;

Lu, HY .

APPLIED SURFACE SCIENCE, 2001, 177 (1-2) :103-113

[9]

Klok HA, 2001, ADV MATER, V13, P1217, DOI 10.1002/1521-4095(200108)13:16<1217::AID-ADMA1217>3.0.CO

[10]

2-D

← 1 2 3 4 →