TY - GEN
T1 - Tunability of ferromagnetic (LA,SR)MnO 3 (LSMO) thin films for microwave applications
AU - Ahmad, Mahmoud Al
AU - Yun, Eui Jung
AU - Cheon, Chae Il
AU - Plana, Robert
PY - 2008
Y1 - 2008
N2 - Tunability is being driven by a number of very interesting enabling technologies. This work demonstrates the feasibility of ferromagnetic thin film tunability at ambient temperature for radio frequency applications. A 400 nm thick LSMO thin film is formed by the chemical solution deposition (CSD) on the top of indium tin oxide (ITO) /SiO 2/Si heterostructure. Interdigitated capacitor metallization is deposited on LSMO thin film. The resistance of the LSMO based heterostructure varies with bias voltage as a consequence of local ferromagnetic ordering due to transport current induced in the material by an applied field. At zero bias, the low impedance measurements indicates that the heterostructure exhibits a lossy capacitance. Under the applied field the heterostructure becomes inductive and the losses are reduced.
AB - Tunability is being driven by a number of very interesting enabling technologies. This work demonstrates the feasibility of ferromagnetic thin film tunability at ambient temperature for radio frequency applications. A 400 nm thick LSMO thin film is formed by the chemical solution deposition (CSD) on the top of indium tin oxide (ITO) /SiO 2/Si heterostructure. Interdigitated capacitor metallization is deposited on LSMO thin film. The resistance of the LSMO based heterostructure varies with bias voltage as a consequence of local ferromagnetic ordering due to transport current induced in the material by an applied field. At zero bias, the low impedance measurements indicates that the heterostructure exhibits a lossy capacitance. Under the applied field the heterostructure becomes inductive and the losses are reduced.
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U2 - 10.1109/EUMC.2008.4751700
DO - 10.1109/EUMC.2008.4751700
M3 - Conference contribution
AN - SCOPUS:62349140454
SN - 9782874870064
T3 - Proceedings of the 38th European Microwave Conference, EuMC 2008
SP - 1296
EP - 1299
BT - Proceedings of the 38th European Microwave Conference, EuMC 2008
T2 - 38th European Microwave Conference, EuMC 2008
Y2 - 27 October 2008 through 31 October 2008
ER -