TY - JOUR
KW - Evaluation
KW - Electricity
KW - Decomposition
KW - Temperature
KW - Pulsed laser deposition
KW - Transmission electron microscopy
KW - Methodology
KW - Anisotropy
KW - Perovskite
KW - Iron
KW - Semiconductor
KW - Chemistry
KW - Semiconductors
KW - Nanostructured materials
KW - Crystallization
KW - Crystallography
KW - Iron compounds
KW - Lanthanum compounds
KW - Materials
KW - Materials testing
KW - Nanotechnology
KW - Article
KW - Single crystals
KW - Ferromagnetic materials
KW - Magnetization
KW - Surface properties
KW - Ferric oxide
KW - Thermodynamics
KW - Surface property
KW - Ferric ion
KW - Ferric Compounds
KW - Conformation
KW - Ultrastructure
KW - Molecular Conformation
KW - Self-assembly
KW - Energy dispersive spectroscopy
KW - Iron nanowires
KW - Self-assembled nanowires
KW - Specific energy
KW - Thermodynamic equilibrium
KW - Nanotube
KW - Metallurgy
KW - Electric Wiring
KW - Manufactured Materials
KW - Nanotubes
AU - L Mohaddes-Ardabili
AU - H Zheng
AU - S.B Ogale
AU - B Hannoyer
AU - W Tian
AU - J Wang
AU - S.E Lofland
AU - S.R Shinde
AU - T Zhao
AU - Y Jia
AU - L Salamanca-Riba
AU - D.G Schlom
AU - M Wuttig
AU - Ramamoorthy Ramesh
AB - Arrays of perpendicular ferromagnetic nanowires have recently attracted considerable interest for their potential use in many areas of advanced nanotechnology. We report a simple approach to create self-assembled nanowires of α-Fe through the decomposition of a suitably chosen perovskite. We illustrate the principle behind this approach using the reaction 2La 0.5Sr0.5FeO3 → LaSrFeO4 + Fe + O2 that occurs during the deposition of La0.5Sr 0.5FeO3 under reducing conditions. This leads to the spontaneous formation of an array of single-crystalline α-Fe nanowires embedded in LaSrFeO4 matrix, which grow perpendicular to the substrate and span the entire film thickness. The diameter and spacing of the nanowires are controlled directly by deposition temperature. The nanowires show uniaxial anisotropy normal to the film plane and magnetization close to that of bulk α-Fe. The high magnetization and sizable coercivity of the nanowires make them desirable for high-density data storage and other magnetic-device applications.
BT - Nature Materials
DO - 10.1038/nmat1162
LA - eng
M1 - 8
N1 - cited By 123
N2 - Arrays of perpendicular ferromagnetic nanowires have recently attracted considerable interest for their potential use in many areas of advanced nanotechnology. We report a simple approach to create self-assembled nanowires of α-Fe through the decomposition of a suitably chosen perovskite. We illustrate the principle behind this approach using the reaction 2La 0.5Sr0.5FeO3 → LaSrFeO4 + Fe + O2 that occurs during the deposition of La0.5Sr 0.5FeO3 under reducing conditions. This leads to the spontaneous formation of an array of single-crystalline α-Fe nanowires embedded in LaSrFeO4 matrix, which grow perpendicular to the substrate and span the entire film thickness. The diameter and spacing of the nanowires are controlled directly by deposition temperature. The nanowires show uniaxial anisotropy normal to the film plane and magnetization close to that of bulk α-Fe. The high magnetization and sizable coercivity of the nanowires make them desirable for high-density data storage and other magnetic-device applications.
PB - Nature Publishing Group
PY - 2004
SP - 533
EP - 538
T2 - Nature Materials
TI - Self-assembled single-crystal ferromagnetic iron nanowires formed by decomposition
VL - 3
SN - 14761122
ER -