1.
Phys Rev Lett
; 85(17): 3664-7, 2000 Oct 23.
Article
in English
| MEDLINE
| ID: mdl-11030976
ABSTRACT
A near-surface structural phase transition on a SrTiO3 single crystal, occurring at T(*) about 45 K above the bulk cubic-to-tetragonal transition, is observed by means of optical second harmonic generation. The temperature dependence of the second harmonic field in the vicinity of T(*) is described with a phenomenological Landau-type model.
2.
Phys Rev B Condens Matter
; 54(3): 1825-1832, 1996 Jul 15.
Article
in English
| MEDLINE
| ID: mdl-9986030
