Electronic Resource
Springer
Journal of low temperature physics
105 (1996), S. 807-812
ISSN:
1573-7357
Keywords:
74.72.Bk
;
74.25.Ke
;
63.20.Kr
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00768482
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