Tunability of ferromagnetic (LA,SR)MnO 3 (LSMO) thin films for microwave applications

Mahmoud Al Ahmad, Eui Jung Yun, Chae Il Cheon, Robert Plana

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the 38th European Microwave Conference, EuMC 2008
Pages1296-1299
Number of pages4
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event38th European Microwave Conference, EuMC 2008 - Amsterdam, Netherlands
Duration: Oct 27 2008Oct 31 2008

Publication series

NameProceedings of the 38th European Microwave Conference, EuMC 2008

Other

Other38th European Microwave Conference, EuMC 2008
Country/TerritoryNetherlands
CityAmsterdam
Period10/27/0810/31/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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