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Magnetic ordering in electronically phase-separated La2-xSrxCuO4+y: Neutron diffraction experiments

Udby, L.; Andersen, N. H.; Chou, F. C.; Christensen, N. B.; Emery, S. B.; Lefmann, Kim LU ; Lynn, J. W.; Mohottala, H. E.; Niedermayer, Ch. and Wells, B. O. (2009) In Physical Review B (Condensed Matter and Materials Physics) 80(1).
Abstract
We present results of magnetic neutron diffraction experiments on the codoped superoxygenated La2-xSrxCuO4+y (LSCO+O) system with x=0.09. We find that the magnetic phase is long-range ordered incommensurate antiferromagnetic with a Neacuteel temperature T-N coinciding with the superconducting ordering temperature T-c=40 K. The incommensurability value is consistent with a hole doping of n(h)approximate to 1>8 but in contrast to nonsuperoxygenated La2-xSrxCuO4 with hole doping close to n(h)approximate to 18 the magnetic-order parameter is not field dependent. We attribute this to the magnetic order being fully developed in LSCO+O as in the spin and charge ordered "stripe" compounds La1.48Nd0.40Sr0.12CuO4 and La7/8Ba1/8CuO4.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
superconducting transition temperature, compounds, strontium, spin density waves, neutron diffraction, superconductors, magnetic, magnetic structure, long-range order, lanthanum compounds, high-temperature superconductors, antiferromagnetic materials, doping
in
Physical Review B (Condensed Matter and Materials Physics)
volume
80
issue
1
publisher
American Physical Society
external identifiers
  • wos:000268617100096
  • scopus:68949108602
ISSN
1098-0121
DOI
10.1103/PhysRevB.80.014505
language
English
LU publication?
yes
id
3487690c-f41c-4ae6-a4c0-f8995deaeb98 (old id 1459777)
date added to LUP
2009-08-25 15:51:54
date last changed
2017-01-01 05:30:43
@article{3487690c-f41c-4ae6-a4c0-f8995deaeb98,
  abstract     = {We present results of magnetic neutron diffraction experiments on the codoped superoxygenated La2-xSrxCuO4+y (LSCO+O) system with x=0.09. We find that the magnetic phase is long-range ordered incommensurate antiferromagnetic with a Neacuteel temperature T-N coinciding with the superconducting ordering temperature T-c=40 K. The incommensurability value is consistent with a hole doping of n(h)approximate to 1>8 but in contrast to nonsuperoxygenated La2-xSrxCuO4 with hole doping close to n(h)approximate to 18 the magnetic-order parameter is not field dependent. We attribute this to the magnetic order being fully developed in LSCO+O as in the spin and charge ordered "stripe" compounds La1.48Nd0.40Sr0.12CuO4 and La7/8Ba1/8CuO4.},
  author       = {Udby, L. and Andersen, N. H. and Chou, F. C. and Christensen, N. B. and Emery, S. B. and Lefmann, Kim and Lynn, J. W. and Mohottala, H. E. and Niedermayer, Ch. and Wells, B. O.},
  issn         = {1098-0121},
  keyword      = {superconducting transition temperature,compounds,strontium,spin density waves,neutron diffraction,superconductors,magnetic,magnetic structure,long-range order,lanthanum compounds,high-temperature superconductors,antiferromagnetic materials,doping},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Magnetic ordering in electronically phase-separated La2-xSrxCuO4+y: Neutron diffraction experiments},
  url          = {http://dx.doi.org/10.1103/PhysRevB.80.014505},
  volume       = {80},
  year         = {2009},
}