Lattice dynamics inBaxSr1−xTiO3single crystals: A Raman study

2004 ◽  
Vol 70 (17) ◽  
Author(s):  
D. A. Tenne ◽  
A. Soukiassian ◽  
X. X. Xi ◽  
H. Choosuwan ◽  
R. Guo ◽  
...  
Keyword(s):  
Lattice Dynamics ◽  
Raman Study

Raman study and lattice dynamics calculation of the misfit layer compound (PbS)1.12VS2

1995 ◽  
Vol 26 (8-9) ◽  
pp. 675-681 ◽  
Author(s):  
C. Sourisseau ◽  
R. Cavagnat ◽  
M. Fouassier ◽  
J. L. Tirado ◽  
J. Morales
Keyword(s):  
Lattice Dynamics ◽  
Layer Compound ◽  
Raman Study ◽  
Dynamics Calculation

scholarly journals Raman study of lattice dynamics in quasicrystals

2011 ◽  
Vol 357 (3) ◽  
pp. 1235-1238 ◽  
Author(s):  
Yu.S. Ponosov ◽  
N.I. Shchegolikhina ◽  
A.F. Prekul
Keyword(s):  
Lattice Dynamics ◽  
Raman Study

Study of Inelastic Light Scattering in LaxSr(1-1.5x)TiO3

2008 ◽  
Vol 587-588 ◽  
pp. 148-152
Author(s):  
A. Almeida ◽  
Tatiana M. Correia ◽  
M.R. Chaves ◽  
Paula M. Vilarinho ◽  
Andréi L. Kholkin
Keyword(s):  
Transition Temperature ◽  
Low Temperatures ◽  
Lattice Dynamics ◽  
Room Temperature ◽  
Ferroelectric Phase ◽  
Soft Mode ◽  
Grain Structure ◽  
Inelastic Light Scattering ◽  
Raman Study ◽  
A Site

In an attempt to gain a better understanding of the lattice dynamics in lanthanum doped SrTiO3 (STO) ceramics, with general formulae LaxSr(1-1.5x)TiO3, we have carried out a detailed Raman study of the x=0.0133 ceramic in the temperatures ranging from 10K to room temperature. Our results show that lanthanum substitution gives rise to new features in the Raman spectra. The Rayleigh band and the extra Raman-forbidden infrared active modes observed provide evidence for the existence of disorder in the system, apparently associated with grain structure, and lattice defects. Moreover, the absence of a TO1 polar soft mode supports the non-existence of a ferroelectric phase at low temperatures. The shift of the para-antiferrodistorsive transition temperature towards higher temperatures clearly evidences that the replacement of Strontium by Lanthanum occurs at the lattice A-site.

Lattice dynamics and spin-phonon coupling inCaMn2O4: A Raman study

2014 ◽  
Vol 89 (18) ◽  
Author(s):  
V. G. Ivanov ◽  
V. G. Hadjiev ◽  
A. P. Litvinchuk ◽  
D. Z. Dimitrov ◽  
B. L. Shivachev ◽  
...  
Keyword(s):  
Lattice Dynamics ◽  
Phonon Coupling ◽  
Raman Study

Raman study and lattice dynamics of single molecular layers ofMoS2

1991 ◽  
Vol 44 (8) ◽  
pp. 3955-3962 ◽  
Author(s):  
S. Jiménez Sandoval ◽  
D. Yang ◽  
R. F. Frindt ◽  
J. C. Irwin
Keyword(s):  
Lattice Dynamics ◽  
Raman Study ◽  
Molecular Layers

Raman study and lattice dynamics calculations of misfit layered compounds : (PbS)1.18TiS2 and (PbS)1.12VS2

1995 ◽  
Vol 348 ◽  
pp. 107-110 ◽  
Author(s):  
C. Sourisseau ◽  
R. Cavagnat ◽  
M. Fouassier ◽  
J.L. Tirado ◽  
J. Morales
Keyword(s):  
Lattice Dynamics ◽  
Layered Compounds ◽  
Raman Study ◽  
Misfit Layered Compounds

Lattice dynamics and pressure-induced phase transitions inBi2W2O9: High-pressure Raman study

2010 ◽  
Vol 81 (10) ◽  
Author(s):  
M. Maczka ◽  
W. Paraguassu ◽  
P. T. C. Freire ◽  
A. G. Souza Filho ◽  
J. Mendes Filho ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Lattice Dynamics ◽  
Raman Study

scholarly journals Raman study of lattice dynamics in the Weyl semimetal TaAs

2015 ◽  
Vol 92 (6) ◽  
Author(s):  
H. W. Liu ◽  
P. Richard ◽  
Z. D. Song ◽  
L. X. Zhao ◽  
Z. Fang ◽  
...  
Keyword(s):  
Lattice Dynamics ◽  
Weyl Semimetal ◽  
Raman Study
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