%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 }