Raman scattering study of the soft mode in Pb(Mg1/3 Nb2/3 )O3

2011 ◽  
Vol 42 (4) ◽  
pp. 706-714 ◽  
Author(s):  
Hiroki Taniguchi ◽  
Mitsuru Itoh ◽  
Desheng Fu
Keyword(s):  
Raman Scattering ◽  
Soft Mode ◽  
Scattering Study

Raman Scattering Study of Soft Mode Behavior in Ferroelectric Sr2Bi4Ti5O18

2009 ◽  
Vol 381 (1) ◽  
pp. 160-166 ◽  
Author(s):  
M. Fukunaga ◽  
M. Takesada ◽  
A. Onodera
Keyword(s):  
Raman Scattering ◽  
Soft Mode ◽  
Mode Behavior ◽  
Scattering Study

Neutron and raman scattering study of the soft mode behaviour at the structural phase transition in A-tCNB

1990 ◽  
Vol 109 (1) ◽  
pp. 69-74 ◽  
Author(s):  
Ph Bourges ◽  
M. H. Lemee-Cailleau ◽  
P. Launois ◽  
F. Moussa ◽  
H. Cailleau ◽  
...  
Keyword(s):  
Phase Transition ◽  
Raman Scattering ◽  
Structural Phase Transition ◽  
Soft Mode ◽  
Structural Phase ◽  
Scattering Study

Raman Scattering Study of the Soft Mode in Ferroelectric (CH3NHCH2COOH)3CaCl2

1984 ◽  
Vol 53 (9) ◽  
pp. 3234-3241 ◽  
Author(s):  
Mitsuru Sugo ◽  
Masaru Kasahara ◽  
Masaharu Tokunaga ◽  
Itaru Tatsuzaki
Keyword(s):  
Raman Scattering ◽  
Soft Mode ◽  
Scattering Study

scholarly journals Low temperature Raman scattering study of barium doped lead ytterbium tantalate ceramics

2017 ◽  
Vol 07 (01) ◽  
pp. 1750003 ◽  
Author(s):  
Dibyaranjan Rout ◽  
Swetapadma Praharaj ◽  
V. Subramanian ◽  
V. Sivasubramanian
Keyword(s):  
Low Temperature ◽  
Raman Scattering ◽  
Power Law ◽  
Soft Mode ◽  
Relaxor Ferroelectric ◽  
Orthorhombic Symmetry ◽  
Complex Perovskite ◽  
Mode Behavior ◽  
Scattering Study ◽  
Cubic Structure

Raman spectra of a complex perovskite system (Pb[Formula: see text]Ba[Formula: see text](Yb[Formula: see text]Ta[Formula: see text])O3, [Formula: see text] and 0.2 have been studied at low temperature in the range of 10–250[Formula: see text]K. The fascination of the system is that it undergoes a crossover from a highly ordered antiferroelectric ([Formula: see text]) to ferroelectric ([Formula: see text]) to disordered relaxor ferroelectric ([Formula: see text]). The nature of splitting that prevails in F2g ([Formula: see text][Formula: see text]cm[Formula: see text]), F1g ([Formula: see text][Formula: see text]cm[Formula: see text]) modes and their gradual merging and disappearance with [Formula: see text] indicates an orthorhombic symmetry for [Formula: see text] and a pseudo-cubic structure for [Formula: see text]. The mode at 420[Formula: see text]cm[Formula: see text] suggests the existence of rhombohedral distortion in all the compositions. The soft mode behavior of the F2g modes has been analyzed by fitting the data with the power law [Formula: see text].

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