Title: A room-temperature electrical field-controlled magnetic memory cell
Authors: Cavaco, Cavaco ×
Van Kampen, Maarten
Lagae, Liesbet
Borghs, Gustaaf #
Issue Date: Aug-2007
Publisher: Published for the Materials Research Society by the American Institute of Physics
Series Title: Journal of Materials Research vol:22 issue:8 pages:2111-2115
Abstract: We present a method that allows changing the anisotropy and the magnetic characteristics of piezoelectric-ferromagnetic hybrid structures by electric fields, thereby suppressing the need for external or local magnetic fields. We have investigated the magnetic properties of single Co50Fe50 and CoFe80B20 magnetostrictive thin films as well as of high-quality bottom-pinned spin valves (SV) sputtered on piezoelectric Substrates [lead zirconate titanate (PZT)] and patterned in an interdigitated transducer (IDT). Induction of a uniaxial anisotropy axis and the changes on coercivity and switching fields as a function of the applied bias voltage on the IDT are analyzed and interpreted. The down-scalability of this hybrid method supports the possibility of achieving low-power/low-voltage control of the switching fields and shows the feasibility of a hybrid ferroelectric magnetic memory cell.
ISSN: 0884-2914
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Semiconductor Physics Section
× corresponding author
# (joint) last author

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