DC bias dependent shift of resonance frequencies in BST thin film membranes
Noeth, A.; Yamada, T.; Sherman, V.; Muralt, P.; Tangantsev, A.; Setter, N.
2007

Résumé

DC bias dependent acoustic resonance phenomena have been observed in micromachined tunable thin film capacitors based on Ba0.3Sr0.7TiO3 (BST) thin films. The antiresonance frequency is only weakly dc bias dependent, whereas the resonance frequency exhibits a strong dependence on the applied dc bias. The resonance frequency shifted by 0.8% for a frequency of about 3.44 GHz and an applied of 333 KV/cm. At the same time the electromechanical coupling constant k(t)(2) increased to 1.8%. The experimental observations correlate well with the theoretical predictions derived from the free energy P expansion using Landau theory.

Détails

Titre DC bias dependent shift of resonance frequencies in BST thin film membranes
Auteur(s) Noeth, A. ; Yamada, T. ; Sherman, V. ; Muralt, P. ; Tangantsev, A. ; Setter, N.
Publié dans 2007 Sixteenth Ieee International Symposium On The Applications Of Ferroelectrics
Série IEEE International Symposium on Applications of Ferroelectrics
Pages 236-238
Présenté à 16th IEEE International Symposium on Applications of Ferroelectrics, Nara, JAPAN, May 27-31, 2007
Date 2007
Editeur Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN 978-1-4244-1333-1
Mots-clés (libres)
DOI https://doi.org/10.1109/ISAF.2007.4393226
Autres identifiant(s) Afficher la publication dans Web of Science
Laboratoires LC
Le document apparaît dans Production scientifique et compétences > STI - Faculté des sciences et techniques de l'ingénieur > STI Archives > LC - Laboratoire de céramique
Papiers de conférence
Travail produit à l'EPFL
Publié
Date de création de la notice 2012-07-04

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