Nucleation-induced self-assembly of multiferroic BiFeO3- CoFe2O4 nanocomposites

Sergiu M. Stratulat; Xiaoli Lu; Alessio Morelli; Dietrich Hesse; Wilfried Erfurth; Marin Alexe

doi:10.1021/nl401965z

Nucleation-induced self-assembly of multiferroic BiFeO₃- CoFe₂O₄ nanocomposites

Sergiu M. Stratulat, Xiaoli Lu, Alessio Morelli, Dietrich Hesse, Wilfried Erfurth, Marin Alexe

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

Abstract

Large areas of perfectly ordered magnetic CoFe₂O₄ nanopillars embedded in a ferroelectric BiFeO₃ matrix were successfully fabricated via a novel nucleation-induced self-assembly process. The nucleation centers of the magnetic pillars are induced before the growth of the composite structure using anodic aluminum oxide (AAO) and lithography-defined gold membranes as hard mask. High structural quality and good functional properties were obtained. Magneto-capacitance data revealed extremely low losses and magneto-electric coupling of about 0.9 μC/cmOe. The present fabrication process might be relevant for inducing ordering in systems based on phase separation, as the nucleation and growth is a rather general feature of these systems.

Original language	English
Pages (from-to)	3884-3889
Number of pages	6
Journal	Nano Letters
Volume	13
Issue number	8
DOIs	https://doi.org/10.1021/nl401965z
Publication status	Published (in print/issue) - 14 Aug 2013

Keywords

heterostructures
magnetoelectric coupling
Multiferroic
self-assembly

Access to Document

10.1021/nl401965z

Cite this

@article{fb21046112244c818ed39f6287b37011,

title = "Nucleation-induced self-assembly of multiferroic BiFeO3- CoFe2O4 nanocomposites",

abstract = "Large areas of perfectly ordered magnetic CoFe2O4 nanopillars embedded in a ferroelectric BiFeO3 matrix were successfully fabricated via a novel nucleation-induced self-assembly process. The nucleation centers of the magnetic pillars are induced before the growth of the composite structure using anodic aluminum oxide (AAO) and lithography-defined gold membranes as hard mask. High structural quality and good functional properties were obtained. Magneto-capacitance data revealed extremely low losses and magneto-electric coupling of about 0.9 μC/cmOe. The present fabrication process might be relevant for inducing ordering in systems based on phase separation, as the nucleation and growth is a rather general feature of these systems.",

keywords = "heterostructures, magnetoelectric coupling, Multiferroic, self-assembly",

author = "Stratulat, {Sergiu M.} and Xiaoli Lu and Alessio Morelli and Dietrich Hesse and Wilfried Erfurth and Marin Alexe",

year = "2013",

month = aug,

day = "14",

doi = "10.1021/nl401965z",

language = "English",

volume = "13",

pages = "3884--3889",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "8",

}

TY - JOUR

T1 - Nucleation-induced self-assembly of multiferroic BiFeO3- CoFe2O4 nanocomposites

AU - Stratulat, Sergiu M.

AU - Lu, Xiaoli

AU - Morelli, Alessio

AU - Hesse, Dietrich

AU - Erfurth, Wilfried

AU - Alexe, Marin

PY - 2013/8/14

Y1 - 2013/8/14

N2 - Large areas of perfectly ordered magnetic CoFe2O4 nanopillars embedded in a ferroelectric BiFeO3 matrix were successfully fabricated via a novel nucleation-induced self-assembly process. The nucleation centers of the magnetic pillars are induced before the growth of the composite structure using anodic aluminum oxide (AAO) and lithography-defined gold membranes as hard mask. High structural quality and good functional properties were obtained. Magneto-capacitance data revealed extremely low losses and magneto-electric coupling of about 0.9 μC/cmOe. The present fabrication process might be relevant for inducing ordering in systems based on phase separation, as the nucleation and growth is a rather general feature of these systems.

AB - Large areas of perfectly ordered magnetic CoFe2O4 nanopillars embedded in a ferroelectric BiFeO3 matrix were successfully fabricated via a novel nucleation-induced self-assembly process. The nucleation centers of the magnetic pillars are induced before the growth of the composite structure using anodic aluminum oxide (AAO) and lithography-defined gold membranes as hard mask. High structural quality and good functional properties were obtained. Magneto-capacitance data revealed extremely low losses and magneto-electric coupling of about 0.9 μC/cmOe. The present fabrication process might be relevant for inducing ordering in systems based on phase separation, as the nucleation and growth is a rather general feature of these systems.

KW - heterostructures

KW - magnetoelectric coupling

KW - Multiferroic

KW - self-assembly

UR - http://www.scopus.com/inward/record.url?scp=84881580757&partnerID=8YFLogxK

U2 - 10.1021/nl401965z

DO - 10.1021/nl401965z

M3 - Article

AN - SCOPUS:84881580757

SN - 1530-6984

VL - 13

SP - 3884

EP - 3889

JO - Nano Letters

JF - Nano Letters

IS - 8

ER -

Nucleation-induced self-assembly of multiferroic BiFeO₃- CoFe₂O₄ nanocomposites

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this