Inelastic neutron experiments confirm the previously reported anomalous
nature of the planar oxygen bond-stretching vibrations and furnish
further details. It is shown that the frequency of the linear breathing
mode is renormalized by 5 THz compared to insulating YBa2Cu3O6. Studies
of the Cu1-apical O bond-stretching vibrations demonstrate that frequencies,
line-widths and phonon intensities can well be understood within
the framework of a harmonic lattice dynamical model. This rules out
predictions of a double well potential and strong anharmonitity for
this type of vibration.
%0 Journal Article
%1 Reichardt1996
%A Reichardt, W.
%D 1996
%I Springer Netherlands
%J Journal of Low Temperature Physics
%K Astronomy Physics and
%N 3
%P 807--812
%R 10.1007/BF00768482
%T Cu-O bond-stretching vibrations in YBa$_2$Cu$_3O$_7$ studied by inelastic
neutron scattering
%U http://dx.doi.org/10.1007/BF00768482
%V 105
%X Inelastic neutron experiments confirm the previously reported anomalous
nature of the planar oxygen bond-stretching vibrations and furnish
further details. It is shown that the frequency of the linear breathing
mode is renormalized by 5 THz compared to insulating YBa2Cu3O6. Studies
of the Cu1-apical O bond-stretching vibrations demonstrate that frequencies,
line-widths and phonon intensities can well be understood within
the framework of a harmonic lattice dynamical model. This rules out
predictions of a double well potential and strong anharmonitity for
this type of vibration.
@article{Reichardt1996,
abstract = {Inelastic neutron experiments confirm the previously reported anomalous
nature of the planar oxygen bond-stretching vibrations and furnish
further details. It is shown that the frequency of the linear breathing
mode is renormalized by 5 THz compared to insulating YBa2Cu3O6. Studies
of the Cu1-apical O bond-stretching vibrations demonstrate that frequencies,
line-widths and phonon intensities can well be understood within
the framework of a harmonic lattice dynamical model. This rules out
predictions of a double well potential and strong anharmonitity for
this type of vibration.},
added-at = {2010-11-06T00:14:39.000+0100},
author = {Reichardt, W.},
biburl = {https://www.bibsonomy.org/bibtex/28a5f08bb0d6ca6e31b7e254fb52e610b/nplumb},
doi = {10.1007/BF00768482},
file = {:C\:\\Users\\Nick\\Documents\\Papers\\Reichardt - Cu-O bond-stretching vibrations in YBCO studied by INS.pdf:PDF},
interhash = {8a1190561d26b9664f9f7c811ea17420},
intrahash = {8a5f08bb0d6ca6e31b7e254fb52e610b},
issn = {0022-2291},
journal = {Journal of Low Temperature Physics},
keywords = {Astronomy Physics and},
number = 3,
owner = {Nick},
pages = {807--812},
publisher = {Springer Netherlands},
timestamp = {2010-11-06T00:14:43.000+0100},
title = {Cu-O bond-stretching vibrations in YBa$_2$Cu$_3O$_7$ studied by inelastic
neutron scattering},
url = {http://dx.doi.org/10.1007/BF00768482},
volume = 105,
year = 1996
}