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Título: | Trapping and electrical characterization of single core/shell iron-based nanoparticles in self-aligned nanogaps |
Autor: | Labra Muñoz, Jacqueline; Konstantinović, Z.; Balcells, Lluis CSIC ORCID; Pomar, Alberto CSIC ORCID; Zant, Herre S. J. van der; Dulić, Diana | Palabras clave: | Electron tunneling Electrical characterization Low temperatures Nanoparticle clusters Single Electron Tunneling Voltage characteristics Voltage increase |
Fecha de publicación: | 5-ago-2019 | Editor: | American Institute of Physics | Citación: | Applied Physics Letters 115(6): 063104 (2019) | Resumen: | We report on the fabrication and measurements of platinum-self-aligned nanogap devices containing cubed iron (core)/iron oxide (shell) nanoparticles (NPs) with two average different sizes (13 and 17 nm). The nanoparticles are deposited by means of a cluster gun technique. Their trapping across the nanogap is demonstrated by comparing the current vs voltage characteristics (I-Vs) before and after the deposition. At low temperature, the I-Vs can be well fitted to the Korotkov and Nazarov Coulomb blockade model, which captures the coexistence of single-electron tunneling and tunnel barrier suppression upon a bias voltage increase. The measurements thus show that Coulombblockaded devices can be made with a nanoparticle cluster source, which extends the existing possibilities to fabricate such devices to those in which it is very challenging to reduce the usual NP agglomeration given by a solution method. | Versión del editor: | http://dx.doi.org/10.1063/1.5094352 | URI: | http://hdl.handle.net/10261/189696 | ISSN: | 0003-6951 |
Aparece en las colecciones: | (ICMAB) Artículos |
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Labra_ApplPysLett_2019_editorial.pdf | 1,75 MB | Adobe PDF | Visualizar/Abrir |
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