Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/128155
Title: | Kondo Effect in a Neutral and Stable All Organic Radical Single Molecule Break Junction |
Author: | Frisenda, Riccardo Gaudenzi, Rocco Franco, Carlos Mas Torrent, Marta Rovira i Angulo, Concepció Veciana, Jaume Alcón Rovira, Isaac Bromley, Stefan Thomas Burzurí, Enrique van der Zant, Herre S. J. |
Keywords: | Magnetisme Transport d'electrons Electrònica de l'estat sòlid Espintrònica Magnetism Electron transport Solid state electronics Spintronics |
Issue Date: | 1-May-2015 |
Publisher: | American Chemical Society |
Abstract: | Organic radicals are neutral, purely organic molecules exhibiting an intrinsic magnetic moment due to the presence of an unpaired electron in the molecule in its ground state. This property, added to the low spin-orbit coupling and weak hyperfine interactions, make neutral organic radicals good candidates for molecular spintronics insofar as the radical character is stable in solid state electronic devices. Here we show that the paramagnetism of the polychlorotriphenylmethyl radical molecule in the form of a Kondo anomaly is preserved in two- and three-terminal solid-state devices, regardless of mechanical and electrostatic changes. Indeed, our results demonstrate that the Kondo anomaly is robust under electrodes displacement and changes of the electrostatic environment, pointing to a localized orbital in the radical as the source of magnetism. Strong support to this picture is provided by density functional calculations and measurements of the corresponding nonradical species. These results pave the way toward the use of all-organic neutral radical molecules in spintronics devices and open the door to further investigations into Kondo physics. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1021/acs.nanolett.5b00155 |
It is part of: | Nano Letters, 2015, vol. 15, num. 5, p. 3109-3114 |
URI: | http://hdl.handle.net/2445/128155 |
Related resource: | https://doi.org/10.1021/acs.nanolett.5b00155 |
ISSN: | 1530-6984 |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) Articles publicats en revistes (Institut de Química Teòrica i Computacional (IQTCUB)) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
667537.pdf | 4.22 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.