Digitale Medien
Springer
Journal of low temperature physics
105 (1996), S. 807-812
ISSN:
1573-7357
Schlagwort(e):
74.72.Bk
;
74.25.Ke
;
63.20.Kr
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
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.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00768482
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