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Thickness dependent performance of Na0.5K0.5NbO3/sapphire thin film varactors
KTH, Tidigare Institutioner (före 2005), Mikroelektronik och informationsteknik, IMIT.ORCID-id: 0000-0002-4997-9032
2001 (engelsk)Inngår i: Integrated Ferroelectrics, ISSN 1058-4587, E-ISSN 1607-8489, Vol. 39, nr 1-4, s. 1353-1360Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Perfect c-axis oriented Na0.5K0.5NbO3 (NKN) films have been pulsed laser deposited on Al2O3(01 (1) under bar2) single crystals (r-cut sapphire) for voltage tunable microwave device applications. Thickness dependence of dielectric performance of the NKN/sapphire interdigital capacitors (IDCs) has been studied. 40 V bias tunability and dielectric loss tandelta of 4 burr slot IDCs have been found to be 24.6 % and 2.86 % for 1.2 mum thick NKN film, and 6.1 % and 0.83 % for 0.14 mum thick NKN film, respectively. Low leakage currents and high breakdown voltages are observed in these structures.

sted, utgiver, år, opplag, sider
2001. Vol. 39, nr 1-4, s. 1353-1360
Emneord [en]
tunable ferroelectric film, thickness dependence, interdigital capacitor, capacitors
Identifikatorer
URN: urn:nbn:se:kth:diva-21227ISI: 000173066800044OAI: oai:DiVA.org:kth-21227DiVA, id: diva2:339925
Merknad
QC 20100525Tilgjengelig fra: 2010-08-10 Laget: 2010-08-10 Sist oppdatert: 2022-10-25bibliografisk kontrollert

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