I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter
New inelastic neutron-scattering and Brillouin-scattering results are reported for pressure-oriented SrTiO3crystals at temperatures below the structural transition. The measurements reveal an unexpectedly large number of anomalies at small frequencies and wave vectors in the quantum paraelectric region. The anomalies include a strong depression of a TA-branch at unusually small wave vectors, an apparent splitting of the same branch, the lifting of a selection rule for the structural mode, and an anomalous temperature dependence of the elastic constant C44. © 1993 IOP Publishing Ltd.
I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
F.J. Himpsel, T.A. Jung, et al.
Surface Review and Letters
A. Krol, C.J. Sher, et al.
Surface Science