2024-03-29T09:15:50Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2179652020-12-13T08:45:25Zcom_10261_89com_10261_3col_10261_342
Discrete Electronic Subbands due to Bragg Scattering at Molecular Edges
Martín-Jiménez, Alberto
Gallego, José M.
Miranda, Rodolfo
Otero, Roberto
Ministerio de Economía y Competitividad (España)
Comunidad de Madrid
Universidad Autónoma de Madrid
Bragg Scattering
Discrete Electronic Subbands
Molecular Edges
Physical properties
Nanoscience
Nanotechnology
[EN] The discretization of the electronic structure of nanometer-size solid systems due to quantum confinement and the concomitant modification of their physical properties is one of the cornerstones for the development of nanoscience and nanotechnology. In this Letter we demonstrate that the Bragg scattering of Cu(111) surface-state electrons by the periodic arrangement of tetracyanoquinodimethane molecules at the edges of self-assembled molecular islands, along with the dominant contribution of backscattering processes to the electronic density of states, discretizes the possible values of the electron momentum parallel to the island edge. The electronic structure consists thus of a discrete number of subbands which occur in a nonclosed space, and therefore without quantum confinement.
The authors acknowledge financial support from the Spanish Ministry for Economy and Competitiveness [Grants No. FIS2015-67367-C2-1-P, No. FIS2015-72482- EXP, No. FIS2016-78591-C3-1-R, and the María de Maeztu Programme for Units of Excellence in R&D (No. MDM-2014-0377)], the regional government of Comunidad de Madrid (Grants No. S2013/MIT-3007, No. S2013/MIT-2850, and No. S2018/NMT-4321), Universidad Autónoma de Madrid (UAM/48), and IMDEA Nanoscience. IMDEA Nanociencia acknowledges support from the Severo Ochoa Programme for Centres of Excellence in R&D(MINECO, Grant No.SEV-2016-0686).
2020-08-14T09:40:07Z
2020-08-14T09:40:07Z
2019
2020-08-14T09:40:08Z
artículo
http://purl.org/coar/resource_type/c_6501
doi: 10.1103/PhysRevLett.122.176801
e-issn: 1079-7114
issn: 0031-9007
Physical Review Letters 122 (2019)
http://hdl.handle.net/10261/217965
10.1103/PhysRevLett.122.176801
http://dx.doi.org/10.13039/100012818
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100004593
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info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2015-67367-C2-1-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2015-72482-EXP
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2016-78591-C3-1-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MDM-2014-0377
S2013/MIT-3007/MAD2D-CM
S2013/MIT-2850/NANOFRONTMAG-CM
S2018/NMT-4321/NANOMAGCOST-CM
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2016-0686
Publisher's version
http://dx.doi.org/10.1103/PhysRevLett.122.176801
Sí
open
American Physical Society