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Selective resolution of phonon modes in STM-IETS on clean and oxygen-adsorbed Cu(100) surfaces

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Title
Selective resolution of phonon modes in STM-IETS on clean and oxygen-adsorbed Cu(100) surfaces
Author(s)
Lee Minjun; Oh Myungchul; Jeon Hoyeon; Yi Sunwouk; Zoh Inhae; Zhang Chao; Chae Jungseok; Kuk Young
Publication Date
2019-11
Journal
SURFACE SCIENCE, v.689, no., pp.UNSP121451 -
Publisher
ELSEVIER SCIENCE BV
Abstract
The observation of surface phonon using scanning probe microscopy can provide important information related to local structural and electrical properties. In this study, surface phonon modes on a Cu(100) surface were measured using inelastic tunneling spectroscopy of scanning tunneling microscopy. One phonon mode was measured at 3.6 meV on a clean Cu(100) surface. On an oxygen-adsorbed Cu(100) surface, another phonon mode was measured at 13.5 meV. This phonon mode was considered to be enhanced by the symmetry created by Cu-missing rows. The spatially varying d2I/dV2 map showed the effect of surface stress relaxation.© 2019 Published by Elsevier B.V.
URI
https://pr.ibs.re.kr/handle/8788114/6786
ISSN
0039-6028
Appears in Collections:
Center for Quantum Nanoscience(양자나노과학 연구단) > Journal Papers (저널 논문)
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