Electrical properties of Bi2Mg2/3Nb4/3O7 (BMN) pyrochlore thin films deposited on Pt and Cu metal at low temperatures for embedded capacitor applications

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200-nm-thick BMN films were deposited on Pt/TiO2/SiO2/Si and Cu/Ti/SiO2/Si substrates at various temperatures by pulsed laser deposition. The dielectric constant and capacitance density of the films deposited on Pt and Cu electrodes show similar tendency with increasing deposition temperature. On the other hand, dielectric loss of the films deposited on Cu electrode varies from 0.7% to 1.3%, while dielectric loss of films on Pt constantly shows 0.2% even though the deposition temperature increases. The low value of breakdown strength in BMN films on Pt compared to films deposited on Cu electrode was attributed to the increase of surface roughness by the formation of secondary phases at interface between BMN films and Pt electrodes.
Publisher
AMER INST PHYSICS
Issue Date
2007-01
Language
English
Article Type
Article
Keywords

HIGH DIELECTRIC-CONSTANT; PASSIVE COMPONENTS; CRYSTAL-CHEMISTRY; INTEGRATION; FOILS

Citation

APPLIED PHYSICS LETTERS, v.90, no.5, pp.153 - 157

ISSN
0003-6951
DOI
10.1063/1.2435336
URI
http://hdl.handle.net/10203/250591
Appears in Collection
CBE-Journal Papers(저널논문)
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