Raman spectroscopy of collective modes in charge-density-wave systems: the mean-field microscopic theory

2009 ◽  
Vol 40 (4) ◽  
pp. 442-452 ◽  
Author(s):  
Ivan Kupčić
Keyword(s):  
Raman Spectroscopy ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Mean Field ◽  
Microscopic Theory ◽  
Collective Modes ◽  
The Mean

Tunneling Spectra of NbSe3 in Magnetic Fields

1998 ◽  
Vol 12 (24) ◽  
pp. 1013-1019
Author(s):  
He Haifeng ◽  
Wang Yunping ◽  
Li Shanlin ◽  
Jing Xiunian ◽  
Li Guohong ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fermi Surface ◽  
Charge Density ◽  
Applied Magnetic Field ◽  
Charge Density Wave ◽  
Density Wave ◽  
Mean Field ◽  
Fermi Surface Nesting ◽  
The Mean ◽  
Gap Parameter

The charge density wave gaps of NbSe 3 have been carefully determinated by tunneling spectroscopy. In contrast to earlier work, the gap parameter associated with the 59 K transition obtained in the present measurements is very close to the mean field value. The gap structures for both the 145 K and 59 K transitions are found to be essentially independent of the applied magnetic field H. The present findings strongly suggest that the anomalous magnetotransport properties of the material originate from some other mechanism than a H-induced improvement of Fermi surface nesting.

scholarly journals Raman spectroscopy of optical phonon and charge density wave modes in 1T-TiSe2 exfoliated flakes

2017 ◽  
Vol 266 ◽  
pp. 21-25 ◽  
Author(s):  
Lin Cui ◽  
Rui He ◽  
Gaomin Li ◽  
Yujun Zhang ◽  
Yumeng You ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Charge Density ◽  
Optical Phonon ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Modes

scholarly journals Evolution of coherent collective modes through consecutive charge-density-wave transitions in the(PO2)4(WO3)12monophosphate tungsten bronze

2017 ◽  
Vol 96 (3) ◽  
Author(s):  
L. Stojchevska ◽  
M. Borovšak ◽  
P. Foury-Leylekian ◽  
J.-P. Pouget ◽  
T. Mertelj ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Tungsten Bronze ◽  
Collective Modes
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