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Acoustic confinement phenomena in oxide multifunctional nanophononic devices

Bruchhausen, Axel and Lanzillotti-Kimura, N. D. and Jusserand, B. and Soukiassian, A. and Xie, L. and Pan, X. Q. and Dekorsy, Thomas and Schlom, D. G. and Fainstein, A. (2018) Acoustic confinement phenomena in oxide multifunctional nanophononic devices. Physical Review Materials, 2 (10), p. 106002. American Physical Society. DOI: 10.1103/PhysRevMaterials.2.106002 ISSN 2475-9953

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Official URL: http://dx.doi.org/10.1103/PhysRevMaterials.2.106002

Abstract

Engineering of phononic resonances in ferroelectric structures is a new knob to realize novel multifunctional devices. Here we show the possibility of predictively designing and fabricating phononic nanoresonators utilizing combinations of MBE-grown insulating (BaTiO3, SrTiO3) and metallic (SrRuO3) oxides. We experimentally demonstrate the confinement of acoustic waves in the 100-GHz frequency range in a phonon nanocavity, and the the time and spatial beatings resulting from the coupling of two different hybrid nanocavities forming an acoustic molecule. Additionally, the direct measurement of Bloch-like oscillations of acoustic phonons is observed in a system formed by ten coupled resonators. Utilizing coherent phonon generation techniques, we study phonon dynamics directly in the time domain. The metallic SrRuO3 layer introduces a local phonon generator and transducer that allows for the spatial, spectral, and time-domain monitoring of the complex generated waves. Our results introduce ferroelectric cavity systems as a new realm for the study of complex wave localization phenomena at the nanoscale. These systems can be successfully designed and conceived using state of the art growth techniques that combine perovskite oxides possessing multifunctional properties.

Item URL in elib:https://elib.dlr.de/122622/
Document Type:Article
Title:Acoustic confinement phenomena in oxide multifunctional nanophononic devices
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bruchhausen, AxelDepartment of Physics and Center for Applied Photonics, University of Konstanz, Germany, Instituto Balseiro & Centro Atomico Bariloche (CNEA), and CONICET, ArgentinaUNSPECIFIED
Lanzillotti-Kimura, N. D.UNSPECIFIEDUNSPECIFIED
Jusserand, B.UNSPECIFIEDUNSPECIFIED
Soukiassian, A.UNSPECIFIEDUNSPECIFIED
Xie, L.UNSPECIFIEDUNSPECIFIED
Pan, X. Q.UNSPECIFIEDUNSPECIFIED
Dekorsy, ThomasInstitute of Technical Physics, DLRhttps://orcid.org/0000-0003-2257-2854
Schlom, D. G.UNSPECIFIEDUNSPECIFIED
Fainstein, A.instituto balseiro & centro atomico bariloche (cnea), and conicet, argentinaUNSPECIFIED
Date:11 October 2018
Journal or Publication Title:Physical Review Materials
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:2
DOI :10.1103/PhysRevMaterials.2.106002
Page Range:p. 106002
Publisher:American Physical Society
ISSN:2475-9953
Status:Published
Keywords:Acoustic Phonons, nanophononics, ferroelectrics, femtosecond spectroscopy, asynchronous optical sampling
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Dekorsy, Prof. Dr. Thomas
Deposited On:12 Nov 2018 10:25
Last Modified:06 Sep 2019 14:49

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