Selectable Spontaneous Polarization Direction and Magnetic Anisotropy in BiFeO3-CoFe2O4 Epitaxial Nanostructures

被引：84

作者：

Dix, Nico ^{[1
]}

Muralidharan, Rajaram ^{[1
]}

Rebled, Jose-Manuel ^{[1
,2
]}

Estrade, Sonia ^{[2
]}

Peiro, Francesca ^{[2
]}

Varela, Manuel ^{[3
]}

Fontcuberta, Josep ^{[1
]}

Sanchez, Florencio ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat Barcelona, Bellaterra 08193, Spain

[2] Univ Barcelona, Dept Elect, LENS MIND IN2UB, E-08028 Barcelona, Spain

[3] Univ Barcelona, Dept Fis Aplicada & Opt, E-08028 Barcelona, Spain

来源：

ACS NANO | 2010年 / 4卷 / 08期

关键词：

multiferroic nanostructures; BiFeO3; ferromagnetic spinels; magnetic anisotropy; epitaxial stabilization; THIN-FILMS; MULTIFERROIC NANOSTRUCTURES; GROWTH; BIFEO3;

D O I：

10.1021/nn101546r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate that epitaxial strain engineering is an efficient method to manipulate the ferromagnetic and ferroelectric properties in BiFeO3-CoFe2O4 columnar nanocomposites. On one hand, the magnetic anisotropy of CoFe2O4 is totally tunable from parallel to perpendicular controlling the CoFe2O4 strain with proper combinations of substrate and ferroelectric phase. On the other hand, the selection of the used substrate allows the growth of the rhombohedral bulk phase of BiFeO3 or the metastable nearly tetragonal one, which implies a rotation of the ferroelectric polar axis from [111] to close to the [001] direction. Remarkably, epitaxy is preserved and interfaces are semicoherent even when lattice mismatch is above 10%. The broad range of sustainable mismatch suggests new opportunities to assemble epitaxial nanostructures combining highly dissimilar materials with distinct functionalities.

引用

页码：4955 / 4961

页数：7

共 30 条

[1] Evidence for Room-Temperature Multiferroicity in a Compound with a Giant Axial Ratio [J].

Bea, H. ;

Dupe, B. ;

Fusil, S. ;

Mattana, R. ;

Jacquet, E. ;

Warot-Fonrose, B. ;

Wilhelm, F. ;

Rogalev, A. ;

Petit, S. ;

Cros, V. ;

Anane, A. ;

Petroff, F. ;

Bouzehouane, K. ;

Geneste, G. ;

Dkhil, B. ;

Lisenkov, S. ;

Ponomareva, I. ;

Bellaiche, L. ;

Bibes, M. ;

Barthelemy, A. .

PHYSICAL REVIEW LETTERS, 2009, 102 (21)

[2] ANISOTROPY AND MAGNETOSTRICTION OF SOME FERRITES [J].

BOZORTH, RM ;

TILDEN, EF ;

WILLIAMS, AJ .

PHYSICAL REVIEW, 1955, 99 (06) :1788-1798

[3] Sputtering growth and characterization of CoFe2O4-BaTiO3 nanostructures [J].

Dix, N. ;

Skumryev, V. ;

Laukhin, V. ;

Fabrega, L. ;

Sanchez, F. ;

Fontcuberta, J. .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 144 (1-3) :127-131

[4] On the strain coupling across vertical interfaces of switchable BiFeO3-CoFe2O4 multiferroic nanostructures [J].

Dix, N. ;

Muralidharan, R. ;

Guyonnet, J. ;

Warot-Fonrose, B. ;

Varela, M. ;

Paruch, P. ;

Sanchez, F. ;

Fontcuberta, J. .

APPLIED PHYSICS LETTERS, 2009, 95 (06)

[5] Critical Limitations in the Fabrication of Biferroic BiFeO3-CoFe2O4 Columnar Nanocomposites Due to Bismuth Loss [J].

Dix, N. ;

Muralidharan, R. ;

Warot-Fonrose, B. ;

Varela, M. ;

Sanchez, F. ;

Fontcuberta, J. .

CHEMISTRY OF MATERIALS, 2009, 21 (07) :1375-1380

[6] Switching of magnetic anisotropy in epitaxial CoFe2O4 thin films induced by SrRuO3 buffer layer [J].

Gao, X. S. ;

Bao, D. H. ;

Birajdar, B. ;

Habisreuther, T. ;

Mattheis, R. ;

Schubert, M. A. ;

Alexe, M. ;

Hesse, D. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (17)

[7] Strain-induced isosymmetric phase transition in BiFeO3 [J].

Hatt, Alison J. ;

Spaldin, Nicola A. ;

Ederer, Claude .

PHYSICAL REVIEW B, 2010, 81 (05)

[8] Design of self-assembled multiferroic nanostructures in epitaxial films [J].

Levin, Igor ;

Li, Jianhua ;

Slutsker, Julia ;

Roytburd, Alexander L. .

ADVANCED MATERIALS, 2006, 18 (15) :2044-+

[9]

Li J. J., 2006, Regional metallogenic system of Alashan block in inner Monolia autonomous region [Ph.D. Thesis], P46

[10] Self-organized structures in CoCr2O4(001) thin films:: Tunable growth from pyramidal clusters to a {111} fully faceted surface -: art. no. 045403 [J].

Lüders, U ;

Sánchez, F ;

Fontcuberta, J .

PHYSICAL REVIEW B, 2004, 70 (04) :045403-1

← 1 2 3 →