Disordered Kondo nanoclusters: Effect of energy spacing
(2004) In Physical Review B 70.- Abstract
- Exact-diagonalization results for Kondo nanoclusters alloyed with mixed-valence impurities show that tuning the energy spacing Δ drives the system from the Kondo to the Ruderman-Kittel-Kasuya-Yosida (RKKY) regime. The interplay of Δ and disorder gives rise to a Δ versus concentration T=0 phase diagram very rich in structure. The parity of the total number of electrons alters the competition between the Kondo and RKKY correlations. The local Kondo temperatures TK and RKKY interactions depend strongly on the local environment and overall are enhanced by disorder, in contrast to the hypothesis of “Kondo disorder” single-impurity models.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/921298
- author
- Verdozzi, Claudio LU ; Kioussis, N and Luo, Y
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B
- volume
- 70
- article number
- 132404
- publisher
- American Physical Society
- external identifiers
-
- scopus:42749104904
- ISSN
- 1550-235X
- DOI
- 10.1103/PhysRevB.70.132404
- language
- English
- LU publication?
- yes
- id
- 187b4699-3d02-44c5-b938-01037d113854 (old id 921298)
- date added to LUP
- 2016-04-04 10:05:56
- date last changed
- 2022-01-29 19:48:13
@article{187b4699-3d02-44c5-b938-01037d113854, abstract = {{Exact-diagonalization results for Kondo nanoclusters alloyed with mixed-valence impurities show that tuning the energy spacing Δ drives the system from the Kondo to the Ruderman-Kittel-Kasuya-Yosida (RKKY) regime. The interplay of Δ and disorder gives rise to a Δ versus concentration T=0 phase diagram very rich in structure. The parity of the total number of electrons alters the competition between the Kondo and RKKY correlations. The local Kondo temperatures TK and RKKY interactions depend strongly on the local environment and overall are enhanced by disorder, in contrast to the hypothesis of “Kondo disorder” single-impurity models.}}, author = {{Verdozzi, Claudio and Kioussis, N and Luo, Y}}, issn = {{1550-235X}}, language = {{eng}}, publisher = {{American Physical Society}}, series = {{Physical Review B}}, title = {{Disordered Kondo nanoclusters: Effect of energy spacing}}, url = {{http://dx.doi.org/10.1103/PhysRevB.70.132404}}, doi = {{10.1103/PhysRevB.70.132404}}, volume = {{70}}, year = {{2004}}, }