Surface state tunable energy and mass renormalization from homothetic quantum dot arrays
Piquero-Zulaica, Ignacio ; Li, Jun ; Abd El-Fattah, Zakaria M. ; Solianyk, Leonid ; Gallardo, Iker ; Monjas, Leticia ; Hirsch, Anna K.H. ; Arnau, Andrés ; Ortega, J. Enrique ; Stöhr, M. ; Lobo-Checa, Jorge (Universidad de Zaragoza)
Resumen: Quantum dot arrays in the form of molecular nanoporous networks are renowned for modifying the electronic surface properties through quantum confinement. Here we show that, compared to the pristine surface state, the band bottom of the confined states can exhibit downward shifts accompanied by a lowering of the effective masses simultaneous to the appearance of tiny gaps at the Brillouin zone boundaries. We observed these effects by angle resolved photoemission for two self-Assembled homothetic (scalable) Co-coordinated metal-organic networks. Complementary scanning tunneling spectroscopy measurements confirmed these findings. Electron plane wave expansion simulations and density functional theory calculations provide insight into the nature of this phenomenon, which we assign to metal-organic overlayer-substrate interactions in the form of adatom-substrate hybridization. To date, the absence of the experimental band structure resulting from single metal adatom coordinated nanoporous networks has precluded the observation of the significant surface state renormalization reported here, which we infer to be general for low interacting and well-defined adatom arrays.
Idioma: Inglés
DOI: 10.1039/c9nr07365e
Año: 2019
Publicado en: Nanoscale 11, 48 (2019), 23132-23138
ISSN: 2040-3372
Factor impacto JCR: 6.895 (2019)
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 50 / 314 = 0.159 (2019) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 25 / 103 = 0.243 (2019) - Q1 - T1
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 28 / 177 = 0.158 (2019) - Q1 - T1
Categ. JCR: PHYSICS, APPLIED rank: 23 / 154 = 0.149 (2019) - Q1 - T1
Factor impacto SCIMAGO: 2.18 - Nanoscience and Nanotechnology (Q1) - Materials Science (miscellaneous) (Q1)
Financiación: info:eu-repo/grantAgreement/EC/FP7/307760/EU/Tuning electronic surface properties by molecular patterning/SURFPRO
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2016-75862-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2016-78293-C6
Tipo y forma: Article (Published version)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
Exportado de SIDERAL (2020-07-16-09:38:53)
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Idioma: Inglés
DOI: 10.1039/c9nr07365e
Año: 2019
Publicado en: Nanoscale 11, 48 (2019), 23132-23138
ISSN: 2040-3372
Factor impacto JCR: 6.895 (2019)
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 50 / 314 = 0.159 (2019) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 25 / 103 = 0.243 (2019) - Q1 - T1
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 28 / 177 = 0.158 (2019) - Q1 - T1
Categ. JCR: PHYSICS, APPLIED rank: 23 / 154 = 0.149 (2019) - Q1 - T1
Factor impacto SCIMAGO: 2.18 - Nanoscience and Nanotechnology (Q1) - Materials Science (miscellaneous) (Q1)
Financiación: info:eu-repo/grantAgreement/EC/FP7/307760/EU/Tuning electronic surface properties by molecular patterning/SURFPRO
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2016-75862-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2016-78293-C6
Tipo y forma: Article (Published version)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2020-07-16-09:38:53)
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Record created 2020-02-04, last modified 2020-07-16