dc.identifier.uri |
http://dx.doi.org/10.15488/5077 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/5121 |
|
dc.contributor.author |
Tiegel, A.C.
|
|
dc.contributor.author |
Dargel, P.E.
|
|
dc.contributor.author |
Hallberg, K.A.
|
|
dc.contributor.author |
Frahm, Holger
|
|
dc.contributor.author |
Pruschke, T.
|
|
dc.date.accessioned |
2019-07-02T11:04:55Z |
|
dc.date.available |
2019-07-02T11:04:55Z |
|
dc.date.issued |
2013 |
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dc.identifier.citation |
Tiegel, A.C.; Dargel, P.E.; Hallberg, K.A.; Frahm, H.; Pruschke, T.: Spin-spin correlations between two Kondo impurities coupled to an open Hubbard chain. In: Physical Review B 87 (2013), Nr. 7, 75122. DOI: https://doi.org/10.1103/PhysRevB.87.075122 |
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dc.description.abstract |
In order to study the interplay between Kondo and Ruderman-Kittel-Kasuya-Yosida interaction, we calculate the spin-spin correlation functions between two Kondo impurities coupled to different sites of a half-filled open Hubbard chain. Using the density-matrix renormalization group (DMRG), we reexamine the exponents for the power-law decay of the correlation function between the two impurity spins as a function of the antiferromagnetic coupling J, the Hubbard interaction U, and the distance R between the impurities. The exponents for finite systems obtained in this work deviate from previously published DMRG calculations. We furthermore show that the long-distance behavior of the exponents is the same for impurities coupled to the bulk or to both ends of the chain. We note that a universal exponent for the asymptotic behavior can not be extracted from these finite-size systems with open boundary conditions. |
eng |
dc.language.iso |
eng |
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dc.publisher |
College Park (Maryland) : American Physical Society |
|
dc.relation.ispartofseries |
Physical Review B |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
|
dc.subject |
Ruderman-Kittel-Kasuya-Yosida |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Spin-spin correlations between two Kondo impurities coupled to an open Hubbard chain |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
0163-1829 |
|
dc.relation.issn |
0556-2805 |
|
dc.relation.issn |
1098-0121 |
|
dc.relation.issn |
2469-9950 |
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dc.relation.doi |
https://doi.org/10.1103/PhysRevB.87.075122 |
|
dc.bibliographicCitation.issue |
7 |
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dc.bibliographicCitation.volume |
87 |
|
dc.bibliographicCitation.firstPage |
75122 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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