About: Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We study the competition between interference due to multiple single-particle paths and Coulomb interaction in a simple model of an Anderson-type impurity with local-magnetic-field-induced level splitting coupled to ferromagnetic leads. The model along with its potential experimental relevance in the field of spintronics serves as a nontrivial benchmark system where various quantum-transport approaches can be tested and compared. We present results for the linear conductance obtained by a spin-dependent implementation of the density-matrix renormalization-group scheme which are compared with a mean-field solution as well as a seemingly more advanced Hubbard-I approximation. We explain why mean field yields nearly perfect results while the more sophisticated Hubbard-I approach fails even at a purely conceptual level since it breaks hermiticity of the related density matrix. We study the competition between interference due to multiple single-particle paths and Coulomb interaction in a simple model of an Anderson-type impurity with local-magnetic-field-induced level splitting coupled to ferromagnetic leads. The model along with its potential experimental relevance in the field of spintronics serves as a nontrivial benchmark system where various quantum-transport approaches can be tested and compared. We present results for the linear conductance obtained by a spin-dependent implementation of the density-matrix renormalization-group scheme which are compared with a mean-field solution as well as a seemingly more advanced Hubbard-I approximation. We explain why mean field yields nearly perfect results while the more sophisticated Hubbard-I approach fails even at a purely conceptual level since it breaks hermiticity of the related density matrix. (en)
Title	Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403) Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403) (en)
skos:prefLabel	Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403) Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403) (en)
skos:notation	RIV/00216208:11320/09:00207085!RIV10-GA0-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/08/0361), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Novotný, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	320134
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/09:00207085
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Interplay; Between; Interference; Coulomb; Interaction; Ferromagnetic; Anderson; Model; Applied; Magnetic; Field; Article; 125403 (en)
http://linked.open.../riv/klicoveSlovo	Applied Between Interaction Ferromagnetic Magnetic Article Model Interference Field 125403 Anderson Interplay Coulomb
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[A8278CA21AF5]
http://linked.open...i/riv/nazevZdroje	Physical Review. B. Condensed Matter
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Non-equilibrium spin dynamics in open electron systems with reduced dimensions
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	79
http://linked.open...iv/tvurceVysledku	Novotný, Tomáš Bohr, D. Flensberg, K. Pedersen, J. N. Schmitteckert, P. Wacker, A.
http://linked.open...ain/vavai/riv/wos	000264769300084
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	1098-0121
number of pages	12 (xsd:int)
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403) Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403) Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403) Interplay Between Interference and Coulomb Interaction in the Ferromagnetic Anderson Model With Applied Magnetic Field (Article No. 125403)

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