Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Magnetism in artificial lattices

Kärkkäinen, Kimmo LU ; Borgh, Magnus LU ; Manninen, M and Reimann, Stephanie LU (2007) In European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics 43(1-3). p.225-228
Abstract
We compare magnetism in two artificial lattice structures, a quantum dot array formed in a two-dimensional electron gas and an optical lattice loaded with repulsive, contact-interacting fermionic atoms. When the tunneling between the lattice sites is strong, both lattices are non-magnetic. With reduced tunneling in the tight-binding limit, the shell-filling of the single-site quantum wells combined with Hund's rule determines the magnetism. This leads to a systematic magnetic phase diagram with non-magnetic, ferromagnetic and antiferromagnetic phases.
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
volume
43
issue
1-3
pages
225 - 228
publisher
EDP Sciences
external identifiers
  • wos:000246772500056
  • scopus:34249710255
ISSN
1434-6060
DOI
10.1140/epjd/e2007-00098-4
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
788fb383-5442-4c53-ba20-685037b0d1e4 (old id 657852)
date added to LUP
2016-04-01 15:39:01
date last changed
2022-01-28 06:22:07
@article{788fb383-5442-4c53-ba20-685037b0d1e4,
  abstract     = {{We compare magnetism in two artificial lattice structures, a quantum dot array formed in a two-dimensional electron gas and an optical lattice loaded with repulsive, contact-interacting fermionic atoms. When the tunneling between the lattice sites is strong, both lattices are non-magnetic. With reduced tunneling in the tight-binding limit, the shell-filling of the single-site quantum wells combined with Hund's rule determines the magnetism. This leads to a systematic magnetic phase diagram with non-magnetic, ferromagnetic and antiferromagnetic phases.}},
  author       = {{Kärkkäinen, Kimmo and Borgh, Magnus and Manninen, M and Reimann, Stephanie}},
  issn         = {{1434-6060}},
  language     = {{eng}},
  number       = {{1-3}},
  pages        = {{225--228}},
  publisher    = {{EDP Sciences}},
  series       = {{European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics}},
  title        = {{Magnetism in artificial lattices}},
  url          = {{http://dx.doi.org/10.1140/epjd/e2007-00098-4}},
  doi          = {{10.1140/epjd/e2007-00098-4}},
  volume       = {{43}},
  year         = {{2007}},
}