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Zero-temperature phase diagram for strongly correlated nanochains

Luo, Y; Verdozzi, Claudio LU and kioussis, N (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)
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Contribution to journal
publication status
published
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in
Journal of Applied Physics
volume
95
issue
11
publisher
American Institute of Physics
external identifiers
  • Scopus:2942659558
DOI
10.1063/1.1689611
language
English
LU publication?
yes
id
98ff9af6-150d-4867-904a-d7b523ca2055 (old id 921303)
date added to LUP
2008-01-10 17:56:59
date last changed
2016-11-17 15:44:18
@misc{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},
  language     = {eng},
  number       = {11},
  publisher    = {ARRAY(0x97dc9f0)},
  series       = {Journal of Applied Physics},
  title        = {Zero-temperature phase diagram for strongly correlated nanochains},
  url          = {http://dx.doi.org/10.1063/1.1689611},
  volume       = {95},
  year         = {2004},
}