Characterization of the charge density wave transition and observation of the amplitude mode in LaAuSb2

2019 ◽  
Vol 99 (23) ◽  
Author(s):  
C. N. Kuo ◽  
D. Shen ◽  
B. S. Li ◽  
Nguyen Nhat Quyen ◽  
W. Y. Tzeng ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Amplitude Mode

scholarly journals Raman scattering evidence for a cascade evolution of the charge-density-wave collective amplitude mode

2010 ◽  
Vol 81 (8) ◽  
Author(s):  
M. Lavagnini ◽  
H.-M. Eiter ◽  
L. Tassini ◽  
B. Muschler ◽  
R. Hackl ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Amplitude Mode

Correction to Raman Characterization of the Charge Density Wave Phase of 1T-TiSe2: From Bulk to Atomically Thin Layers

ACS Nano ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 2304-2304 ◽  
Author(s):  
Dinh Loc Duong ◽  
Gihun Ryu ◽  
Alexander Hoyer ◽  
Chengtian Lin ◽  
Marko Burghard ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Thin Layers ◽  
Wave Phase ◽  
Charge Density Wave Phase ◽  
Raman Characterization

scholarly journals Coherent dynamics of the charge density wave gap in tritellurides

2014 ◽  
Vol 171 ◽  
pp. 299-310 ◽  
Author(s):  
L. Rettig ◽  
J.-H. Chu ◽  
I. R. Fisher ◽  
U. Bovensiepen ◽  
M. Wolf
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Coherent Control ◽  
Energy Gap ◽  
Electronic Band Structure ◽  
Density Wave ◽  
Electronic Band ◽  
Strongly Coupled ◽  
Pulse Pump ◽  
Amplitude Mode

The dynamics of the transient electronic structure in the charge density wave (CDW) system RTe3 (R = rare-earth element) is studied using time- and angle-resolved photoemission spectroscopy (trARPES). Employing a three-pulse pump–probe scheme we investigate the effect of the amplitude mode oscillations on the electronic band structure and, in particular, on the CDW energy gap. We observe coherent oscillations in both lower and upper CDW band with opposite phases, whereby two dominating frequencies are modulating the CDW order parameter. This demonstrates the existence of more than one collective amplitude mode, in contrast to a simple Peierls model. Coherent control experiments of the two amplitude modes, which are strongly coupled in equilibrium, demonstrate independent control of the modes suggesting a decoupling of both modes in the transient photoexcited state.

scholarly journals Amplitude mode of charge density wave in TTF[Ni(dmit)2]2 observed by electronic Raman scattering

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
M. Revelli Beaumont ◽  
Y. Gallais ◽  
A. Sacuto ◽  
K. Jacob ◽  
L. Valade ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Electronic Raman Scattering ◽  
Amplitude Mode
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