In:
Advanced Materials Technologies, Wiley, Vol. 3, No. 8 ( 2018-08)
Abstract:
Voltage‐tunable dielectric materials are widely used for microwave‐frequency signal processing. Among tunable dielectric thin films, (SrTiO 3 ) n SrO Ruddlesden–Popper (RP) superlattices have exceptionally low loss at high frequencies. This paper reports the first realization of resonators, a ubiquitous building block of microwave components, fabricated on RP films, and an analysis of their static and dynamic tuning behavior. The RP film has a ferroelectric‐paraelectric phase transition at ≈200 K, and the tunability is strongest at this temperature. The resonators have approximately 2.5% tuning of the resonance frequency at room temperature and 20% tuning at 200 K, and a tuning time scale of less than a nanosecond, which is limited by the measurement circuit rather than material properties.
Type of Medium:
Online Resource
ISSN:
2365-709X
,
2365-709X
DOI:
10.1002/admt.201800090
Language:
English
Publisher:
Wiley
Publication Date:
2018
detail.hit.zdb_id:
2850995-X
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