Zero-temperature phase diagram for strongly correlated nanochains
(2004) In Journal of Applied Physics 95(11).- Abstract
- Recently there has been a resurgence of intense experimental and theoretical interest on the Kondo physics of nanoscopic and mesoscopic systems due to the possibility of making experiments in extremely small samples. We have carried out exact diagonalization calculations to study the effect of the energy spacing Delta of the conduction band on the ground-state properties of a dense Anderson model nanochain. The calculations reveal for the first time that the energy spacing tunes the interplay between the Kondo and Ruderman–Kittel–Kasuya–Yosida (RKKY) interactions, giving rise to a zero temperature Delta versus hybridization phase diagram with regions of prevailing Kondo or RKKY correlations, separated by a free spins regime. This interplay... (More)
- Recently there has been a resurgence of intense experimental and theoretical interest on the Kondo physics of nanoscopic and mesoscopic systems due to the possibility of making experiments in extremely small samples. We have carried out exact diagonalization calculations to study the effect of the energy spacing Delta of the conduction band on the ground-state properties of a dense Anderson model nanochain. The calculations reveal for the first time that the energy spacing tunes the interplay between the Kondo and Ruderman–Kittel–Kasuya–Yosida (RKKY) interactions, giving rise to a zero temperature Delta versus hybridization phase diagram with regions of prevailing Kondo or RKKY correlations, separated by a free spins regime. This interplay may be relevant to experimental realizations of small rings or quantum dots with tunable magnetic properties. ©2004 American Institute of Physics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/921303
- author
- Luo, Y ; Verdozzi, Claudio LU and kioussis, N
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Applied Physics
- volume
- 95
- issue
- 11
- article number
- 7198
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:2942659558
- ISSN
- 0021-8979
- DOI
- 10.1063/1.1689611
- language
- English
- LU publication?
- yes
- id
- 98ff9af6-150d-4867-904a-d7b523ca2055 (old id 921303)
- date added to LUP
- 2016-04-04 11:48:23
- date last changed
- 2022-01-29 22:31:02
@article{98ff9af6-150d-4867-904a-d7b523ca2055,
abstract = {{Recently there has been a resurgence of intense experimental and theoretical interest on the Kondo physics of nanoscopic and mesoscopic systems due to the possibility of making experiments in extremely small samples. We have carried out exact diagonalization calculations to study the effect of the energy spacing Delta of the conduction band on the ground-state properties of a dense Anderson model nanochain. The calculations reveal for the first time that the energy spacing tunes the interplay between the Kondo and Ruderman–Kittel–Kasuya–Yosida (RKKY) interactions, giving rise to a zero temperature Delta versus hybridization phase diagram with regions of prevailing Kondo or RKKY correlations, separated by a free spins regime. This interplay may be relevant to experimental realizations of small rings or quantum dots with tunable magnetic properties. ©2004 American Institute of Physics.}},
author = {{Luo, Y and Verdozzi, Claudio and kioussis, N}},
issn = {{0021-8979}},
language = {{eng}},
number = {{11}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Journal of Applied Physics}},
title = {{Zero-temperature phase diagram for strongly correlated nanochains}},
url = {{http://dx.doi.org/10.1063/1.1689611}},
doi = {{10.1063/1.1689611}},
volume = {{95}},
year = {{2004}},
}