Phonon Engineering in Twinning Superlattice Nanowires.
- De Luca M Departement Physik , Universität Basel , 4056 Basel , Switzerland.
- Fasolato C Departement Physik , Universität Basel , 4056 Basel , Switzerland.
- Verheijen MA Department of Applied Physics , Eindhoven University of Technology , 5600 MB Eindhoven , The Netherlands.
- Ren Y Department of Applied Physics , Eindhoven University of Technology , 5600 MB Eindhoven , The Netherlands.
- Swinkels MY Departement Physik , Universität Basel , 4056 Basel , Switzerland.
- Kölling S Department of Applied Physics , Eindhoven University of Technology , 5600 MB Eindhoven , The Netherlands.
- Bakkers EPAM Department of Applied Physics , Eindhoven University of Technology , 5600 MB Eindhoven , The Netherlands.
- Rurali R Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) , Campus de Bellaterra, 08193 Bellaterra, Barcelona , Spain.
- Cartoixà X Departament d'Enginyeria Electrònica , Universitat Autònoma de Barcelona , 08193 Bellaterra, Barcelona , Spain.
- Zardo I Departement Physik , Universität Basel , 4056 Basel , Switzerland.
- 2019-06-18
Published in:
- Nano letters. - 2019
English
One of the current challenges in nanoscience is tailoring the phononic properties of a material. This has long been a rather elusive task because several phonons have wavelengths in the nanometer range. Thus, high quality nanostructuring at that length-scale, unavailable until recently, is necessary for engineering the phonon spectrum. Here we report on the continuous tuning of the phononic properties of a twinning superlattice GaP nanowire by controlling its periodicity. Our experimental results, based on Raman spectroscopy and rationalized by means of ab initio theoretical calculations, give insight into the relation between local crystal structure, overall lattice symmetry, and vibrational properties, demonstrating how material engineering at the nanoscale can be successfully employed in the rational design of the phonon spectrum of a material.
- Language
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- English
- Open access status
- hybrid
- Identifiers
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- DOI 10.1021/acs.nanolett.9b01775
- PMID 31203630
- Persistent URL
- https://sonar.ch/global/documents/93994
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