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Inhomogeneous CuO6 tilt distribution and charge-spin correlations in La2-x-yNdySrxCuO4 around the commensurate hole concentration

Gozar, A; Dennis, B S; Siegrist, Theo LU ; Horibe, Y; Blumberg, G; Komiya, S and Ando, Y (2003) In Physical Review B (Condensed Matter and Materials Physics) 68(5). p.1-052511
Abstract
Phononic and magnetic Raman scattering are studied in La2-x-yNdySrxCuO4 with three doping concentrations: x1/8, y = 0; x1/8, y = 0.4; and x = 0.01, y = 0. We observe strong disorder in the tilt pattern of the CuO6 octahedra in both the orthorhombic and tetragonal phases that persist down to 10 K and are coupled to bond disorder in the cation layers around 1/8 doping independent of Nd concentration. The weak magnitude of existing charge-spin modulations in the Nd-doped structure does not allow us to detect the specific Raman signatures of lattice dynamics or two-magnon scattering around 2200 cm–1. ©2003 The American Physical Society
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
68
issue
5
pages
1 - 052511
publisher
American Physical Society
external identifiers
  • scopus:17744410971
ISSN
1098-0121
DOI
10.1103/PhysRevB.68.052511
language
English
LU publication?
yes
id
c50ae802-5ede-4d74-9943-1dd57332149d (old id 121874)
date added to LUP
2007-07-13 12:03:38
date last changed
2018-01-07 08:35:59
@article{c50ae802-5ede-4d74-9943-1dd57332149d,
  abstract     = {Phononic and magnetic Raman scattering are studied in La2-x-yNdySrxCuO4 with three doping concentrations: x1/8, y = 0; x1/8, y = 0.4; and x = 0.01, y = 0. We observe strong disorder in the tilt pattern of the CuO6 octahedra in both the orthorhombic and tetragonal phases that persist down to 10 K and are coupled to bond disorder in the cation layers around 1/8 doping independent of Nd concentration. The weak magnitude of existing charge-spin modulations in the Nd-doped structure does not allow us to detect the specific Raman signatures of lattice dynamics or two-magnon scattering around 2200 cm–1. ©2003 The American Physical Society},
  author       = {Gozar, A and Dennis, B S and Siegrist, Theo and Horibe, Y and Blumberg, G and Komiya, S and Ando, Y},
  issn         = {1098-0121},
  language     = {eng},
  number       = {5},
  pages        = {1--052511},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Inhomogeneous CuO6 tilt distribution and charge-spin correlations in La2-x-yNdySrxCuO4 around the commensurate hole concentration},
  url          = {http://dx.doi.org/10.1103/PhysRevB.68.052511},
  volume       = {68},
  year         = {2003},
}