| Naslov: | Atomic scale visualization of vibrational modes in armchair graphene nanoribbon |
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| Avtorji: | ID Šćepanović, Stefan, Institut "Jožef Stefan" (Avtor)
ID López-Alcalá, Diego (Avtor)
ID Baldoví, José J. (Avtor)
ID Vahl, Alexander (Avtor)
ID Hassanien, Abdou, Institut "Jožef Stefan" (Avtor) |
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| Datoteke: |  URL - Izvorni URL, za dostop obiščite https://onlinelibrary.wiley.com/doi/10.1002/pssr.202500203
 PDF - Predstavitvena datoteka, prenos (1,77 MB)
MD5: 810478FF5B67360125782DB36E7FF953
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| Jezik: | Angleški jezik |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: |  IJS - Institut Jožef Stefan
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| Povzetek: | Using scanning tunneling microscopy (STM) and inelastic tunneling spectroscopy, the low-frequency vibrational modes of a 7-atom wide armchair graphene nanoribbon (7-AGNR) is mapped. The inelastic tunneling channel is enhanced over the elastic one by a covalently bonded 7-AGNR to the apex of an STM tip. This setup has led to resonant inelastic tunneling between vibrational states of supported 7-GNR on Au(111) substrate and the states of the functionalized STM tip. The low-energy spectra reveal two localized peaks at the armchair edges with energies at ±14 and ±30 mV. The peaks are assigned to twice the energies of longitudinal compressive and shear-like modes of 7-AGNR, respectively. Remarkably, the well-separated peaks evolve rapidly into one broader peak toward the bulk of the ribbon due to scattering from substrate interactions. This suggests that edge state phonons are uniquely protected from the microenvironment and may have a profound effect on the transport properties of GNR devices. |
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| Ključne besede: | scanning tunneling microscopy, inelastic tunneling spectroscopy, armchair graphene nanoribbons |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 26.05.2025 |
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| Datum objave: | 17.08.2025 |
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| Založnik: | Wiley |
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| Leto izida: | 2025 |
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| Št. strani: | str. 1-7 |
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| Številčenje: | Vol. 19, iss. , [article no.] 2500203 |
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| Izvor: | ZDA |
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| PID: | 20.500.12556/DiRROS-23620  |
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| UDK: | 620.3 |
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| ISSN pri članku: | 1862-6270 |
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| DOI: | 10.1002/pssr.202500203 |
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| COBISS.SI-ID: | 248621315 |
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| Avtorske pravice: | ©2025 The Author(s). |
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| Opomba: | Nasl. z nasl. zaslona;
Opis vira z dne 11. 9. 2025;
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| Datum objave v DiRROS: | 12.09.2025 |
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| Število ogledov: | 267 |
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| Število prenosov: | 125 |
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| Metapodatki: |    |
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