scholarly journals Damping and softening of transverse acoustic phonons in colossal magnetoresistive La0.7Ca0.3MnO3 and La0.7Sr0.3MnO3

2019 ◽  
Vol 99 (2) ◽  
Author(s):  
Joel S. Helton ◽  
Yang Zhao ◽  
Dmitry A. Shulyatev ◽  
Jeffrey W. Lynn
Keyword(s):  
Acoustic Phonons ◽  
Colossal Magnetoresistive ◽  
Transverse Acoustic

Transverse Acoustic Phonons of GaSb up to 7 GPa by Inelastic Neutron Scattering

2001 ◽  
Vol 223 (2) ◽  
pp. 441-447 ◽  
Author(s):  
S. Klotz ◽  
M. Braden ◽  
J. Kulda ◽  
P. Pavone ◽  
B. Steininger
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Acoustic Phonons ◽  
Transverse Acoustic

Generation of transverse acoustic phonons in a GaAs/AlAs superlattice by ultrafast optical excitation

2004 ◽  
Vol 19 (4) ◽  
pp. S270-S272
Author(s):  
N M Stanton ◽  
R N Kini ◽  
A J Kent ◽  
M Henini
Keyword(s):  
Optical Excitation ◽  
Acoustic Phonons ◽  
Ultrafast Optical ◽  
Transverse Acoustic

Resonant Raman Scattering in MoS2

2015 ◽  
Vol 1726 ◽  
Author(s):  
Katarzyna Gołasa ◽  
Magdalena Grzeszczyk ◽  
Przemysław Leszczyński ◽  
Karol Nogajewski ◽  
Marek Potemski ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Optical Emission ◽  
Sample Thickness ◽  
High Symmetry ◽  
Acoustic Phonons ◽  
Longitudinal Acoustic ◽  
Transverse Acoustic ◽  
Raman Modes ◽  
Resonant Raman ◽  
Resonant Raman Scattering

ABSTRACTResonant Raman scattering in molybdenum disulfide (MoS2) is studied as a function of the sample thickness. Optical emission from 1ML, 2ML, 3ML and bulk MoS2 is investigated both at room and at liquid helium temperature. The experimental results are analysed in terms of the recently proposed attribution of the Raman peaks to multiphonon replica involving transverse acoustic phonons from the vicinity of the high-symmetry M point of the MoS2 Brillouin zone. It is shown that the corresponding processes are quenched in a few monolayer samples much stronger than the modes involving longitudinal acoustic phonons. It is also shown that along with the disappearance of multiphonon replica, the Raman modes, which are in-active in bulk become active in a few-monolayer flakes.

Anomalous Behaviour of the Transverse Acoustic Phonons in KTa 1 - x Nb x O 3

1993 ◽  
Vol 23 (6) ◽  
pp. 427-432 ◽  
Author(s):  
M. D Fontana ◽  
G. E Kugel ◽  
L Foussadier ◽  
W Kress ◽  
D Rytz
Keyword(s):  
Anomalous Behaviour ◽  
Acoustic Phonons ◽  
Transverse Acoustic

Pressure Induced Frequency Shifts of Transverse Acoustic Phonons in Germanium to 9.7 GPa

1997 ◽  
Vol 79 (7) ◽  
pp. 1313-1316 ◽  
Author(s):  
S. Klotz ◽  
J. M. Besson ◽  
M. Braden ◽  
K. Karch ◽  
P. Pavone ◽  
...  
Keyword(s):  
Acoustic Phonons ◽  
Frequency Shifts ◽  
Transverse Acoustic

Low-temperature ultrasonic attenuation by strongly dispersive transverse-acoustic phonons inα-quartz

1987 ◽  
Vol 36 (6) ◽  
pp. 3422-3426 ◽  
Author(s):  
R. Nava ◽  
E. Medina
Keyword(s):  
Low Temperature ◽  
Ultrasonic Attenuation ◽  
Acoustic Phonons ◽  
Transverse Acoustic

Estimation of dispersion curve of transverse acoustic phonons in CdI2 by Raman scattering

1984 ◽  
Vol 49 (6) ◽  
pp. 547-550 ◽  
Author(s):  
H. Katahama ◽  
S. Nakashima ◽  
M. Hangyo ◽  
A. Mitsuishi ◽  
B. Pałosz
Keyword(s):  
Raman Scattering ◽  
Dispersion Curve ◽  
Acoustic Phonons ◽  
Transverse Acoustic

Transverse acoustic phonons in amorphous silicon

1992 ◽  
Vol 141 ◽  
pp. 265-270 ◽  
Author(s):  
Christian Thomsen ◽  
Etienne Bustarret
Keyword(s):  
Amorphous Silicon ◽  
Acoustic Phonons ◽  
Transverse Acoustic

Strain-field scattering of fast-transverse acoustic phonons by dislocations in LiF

1984 ◽  
Vol 51 (2) ◽  
pp. 89-91 ◽  
Author(s):  
R.A. Brown
Keyword(s):  
Strain Field ◽  
Acoustic Phonons ◽  
Transverse Acoustic

Characterization of band structure for transverse acoustic phonons in Fibonacci superlattices by a bandedge formalism

2008 ◽  
Vol 20 (44) ◽  
pp. 445224
Author(s):  
W J Hsueh ◽  
R F Chen ◽  
K Y Tang
Keyword(s):  
Band Structure ◽  
Acoustic Phonons ◽  
Transverse Acoustic
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