TY - JOUR
KW - Resonance
KW - Electric fields
KW - Nanocomposites
KW - Multiferroics
KW - Ferromagnetism
KW - Magnetic anisotropy
KW - Ferromagnetic materials
KW - Heteroepitaxial
KW - Electrical control
KW - Electric polarization
KW - Electric sensitivity
KW - Electrically tunable
KW - FMR linewidths
KW - Microwave probes
KW - Multiferroic nanostructures
KW - Nonuniformity
KW - RF filters
KW - Varying thickness
KW - Voltage dependence
KW - Ferromagnetic resonance
AU - N Benatmane
AU - S.P Crane
AU - F Zavaliche
AU - Ramamoorthy Ramesh
AU - T.W Clinton
AB - We demonstrate electrical control of the ferromagnetic resonance (FMR) in multiferroic nanostructures. A series of heteroepitaxial BiFeO 3-NiFe2O4 nanocomposites of varying thickness are characterized using a microwave probe with magnetic and electric sensitivity. We apply an electric field to a sample and observe voltage-driven shifts in the FMR frequency, reflecting a change in magnetic anisotropy. The voltage dependence of the FMR linewidths is even more pronounced, indicating the electric polarization can induce relatively large magnetic nonuniformity in the material. These characteristics may lead to a class of rf filters where both frequency and bandwidth are electrically tunable. © 2010 American Institute of Physics.
BT - Applied Physics Letters
DO - 10.1063/1.3319507
LA - eng
M1 - 8
N1 - cited By 23
N2 - We demonstrate electrical control of the ferromagnetic resonance (FMR) in multiferroic nanostructures. A series of heteroepitaxial BiFeO 3-NiFe2O4 nanocomposites of varying thickness are characterized using a microwave probe with magnetic and electric sensitivity. We apply an electric field to a sample and observe voltage-driven shifts in the FMR frequency, reflecting a change in magnetic anisotropy. The voltage dependence of the FMR linewidths is even more pronounced, indicating the electric polarization can induce relatively large magnetic nonuniformity in the material. These characteristics may lead to a class of rf filters where both frequency and bandwidth are electrically tunable. © 2010 American Institute of Physics.
PY - 2010
T2 - Applied Physics Letters
TI - Voltage-dependent ferromagnetic resonance in epitaxial multiferroic nanocomposites
VL - 96
SN - 00036951
ER -