Chapter One - Inelastic electron excitation of transition metal atoms and Kondo resonances
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http://hdl.handle.net/10045/111361
Títol: | Chapter One - Inelastic electron excitation of transition metal atoms and Kondo resonances |
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Autors: | Flores, Fernando | Chiappe, Guillermo | Anda, Enrique V. | Goldberg, Edith C. |
Grups d'investigació o GITE: | Física de la Materia Condensada |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Física Aplicada |
Paraules clau: | Kondo | Transition metal atoms | Hund rule | Ionic Hamiltonian | Inelastic electron tunneling |
Àrees de coneixement: | Física Aplicada |
Data de publicació: | 2019 |
Editor: | Elsevier |
Citació bibliogràfica: | Advances in Quantum Chemistry. 2019, 80: 1-22. https://doi.org/10.1016/bs.aiq.2019.06.001 |
Resum: | An ionic Hamiltonian based on the first Hund rule applied to transition metal atoms is reviewed and discussed in detail. The tunneling current between a STM-tip and a transition metal atom is analyzed by means of that Hamiltonian combined with an effective crystal-field effect. We use an equation of motion (EOM) method to calculate that inelastic tunneling current, as well as the Kondo resonance appearing at the Fermi level. We show how an accurate description of its Kondo resonance for the Co/Cu2N(100) system can be achieved by extending the EOM-calculation up to fourth-order in the atom/metal interaction that defines the parameter of expansion in the EOM-equations. These results allow us to calculate also the inelastic tunneling excitation of the atom and the dynamical fluctuations of the atomic spin from S = 3/2 to S = 1. |
Patrocinadors: | E.C.G. acknowledges financial support by CONICET through Grant No. PIP-201101-00621 and U.N.L. through CAI+D grants. F.F. acknowledges support from the Spanish Ministerio de Economía y Competitividad (MINECO) under project MAT2014-59966-R. and through the “María de Maeztu” Programme for Units of Excellence in R&D (MDM-2014-0377). E.V.A. acknowledges financial support of the Brazilian Agency CNPQ under Project no 306000/2017-2. G.Ch. acknowledges financial support of Ministerio de Ciencia y Educación under project FIS2015-G4222-C2-2-P. |
URI: | http://hdl.handle.net/10045/111361 |
ISSN: | 0065-3276 (Print) | 2162-8815 (Online) |
DOI: | 10.1016/bs.aiq.2019.06.001 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/bookPart |
Drets: | © 2019 Elsevier Inc. |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.1016/bs.aiq.2019.06.001 |
Apareix a la col·lecció: | INV - Física de la Materia Condensada - Capítulos de Libros |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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Flores_etal_2019_AdvQuantumChem_final.pdf | Versión final (acceso restringido) | 646,05 kB | Adobe PDF | Obrir Sol·licitar una còpia |
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