Journal Article FZJ-2018-04994

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Ferroelectric monoclinic phases in strained K 0.70 Na 0.30 NbO 3 thin films promoting selective surface acoustic wave propagation

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2018
IOP Publ. Bristol

Nanotechnology 29(41), 415704 - () [10.1088/1361-6528/aad485]

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Abstract: We present a detailed analysis of the ferroelectric domain structure of K0.70Na0.30NbO3 thin films on (110) TbScO3 grown by metal–organic chemical vapor deposition. Upon piezoresponse force microscopy and nanofocus x-ray diffraction measurements we derive a domain model revealing monoclinic MC domains. The complex domain pattern is formed out of four co-existing in-plane orientations of the shearing direction of the monoclinic unit cell resulting in four types of superdomains each being composed of well-ordered stripe domains. Finally, we present surface acoustic wave (SAW) experiments that exhibit extraordinary signal intensities given the low thickness of the tested film. Moreover, the SAW propagation is found to occur selectively along the identified shearing directions.

Classification:

Contributing Institute(s):
  1. Bioelektronik (ICS-8)
  2. JARA-FIT (JARA-FIT)
Research Program(s):
  1. 523 - Controlling Configuration-Based Phenomena (POF3-523) (POF3-523)

Appears in the scientific report 2018
Database coverage:
Medline ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; National-Konsortium ; NationallizenzNationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
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Document types > Articles > Journal Article
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ICS > ICS-8
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 Record created 2018-08-20, last modified 2024-06-19


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