Thermopower behavior inLa2Mo2O7: A possible charge-density-wave system with partial Fermi-surface nesting

1989 ◽  
Vol 40 (13) ◽  
pp. 9312-9314 ◽  
Author(s):  
K. Surendranath ◽  
C. Bansal ◽  
M. Greenblatt ◽  
W. H. McCarroll
Keyword(s):  
Fermi Surface ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave System ◽  
Fermi Surface Nesting

scholarly journals Fermi surface nesting and charge-density wave formation in rare-earth tritellurides

2005 ◽  
Vol 71 (8) ◽  
Author(s):  
J. Laverock ◽  
S. B. Dugdale ◽  
Zs. Major ◽  
M. A. Alam ◽  
N. Ru ◽  
...  
Keyword(s):  
Rare Earth ◽  
Fermi Surface ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Formation ◽  
Fermi Surface Nesting

Phonon Dispersion and Electronic Structure In Quasi-one- Dimensional Layered Ta2NiSe7 Single Crystal

2020 ◽  
Author(s):  
Haiping Chen ◽  
Zhongti Sun
Keyword(s):  
Electronic Structure ◽  
Fermi Surface ◽  
Single Crystal ◽  
Charge Density ◽  
Charge Density Wave ◽  
Phonon Dispersion ◽  
Density Wave ◽  
Layered Systems ◽  
One Dimensional ◽  
Fermi Surface Nesting

The formation mechanism of charge density wave (CDW) order in layered systems was belived to arise from phonon-electron coupling and electronic structure instability induced by Fermi surface nesting. Herein, we...

Hidden Fermi Surface Nesting and Charge Density Wave Instability in Low-Dimensional Metals

Science ◽  
1991 ◽  
Vol 252 (5002) ◽  
pp. 96-98 ◽  
Author(s):  
M. -H. WHANGBO ◽  
E. CANADELL ◽  
P. FOURY ◽  
J. -P. POUGET
Keyword(s):  
Fermi Surface ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Instability ◽  
Fermi Surface Nesting ◽  
Low Dimensional

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 Splitting in the Fermi surface ofZrTe3: A surface charge density wave system

2009 ◽  
Vol 80 (7) ◽  
Author(s):  
Moritz Hoesch ◽  
Xiaoyu Cui ◽  
Kenya Shimada ◽  
Corsin Battaglia ◽  
Shin-ichi Fujimori ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Charge Density ◽  
Surface Charge ◽  
Charge Density Wave ◽  
Surface Charge Density ◽  
Density Wave ◽  
Wave System

Incommensurate modulated phases of the NbxTa1-xTe4 charge density wave system

1992 ◽  
Vol 50 (1) ◽  
pp. 58-59
Author(s):  
S. Ritchie ◽  
J. C. Bennett ◽  
A. Prodan ◽  
F.W. Boswell ◽  
J.M. Corbett
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Direct Evidence ◽  
Density Wave ◽  
Wave System ◽  
Modulated Phases ◽  
Metal Atoms ◽  
Incommensurate Modulation ◽  
End Members ◽  
Modulation Wave Vector

A continuous sequence of compounds having composition NbxTa1-xTe4; 0 ≤ x ≤ 1 have been studied by electron diffraction and microscopy. Previous studies have shown that the end members of the series, TaTε4 and NbTε4 possess a quasi-one-dimensional character and exhibit charge density wave (CDW) distortions. In these compounds, the subcell structure is tetragonal with axes (a × a × c) and consists of the metal atoms (Nb or Ta) centered within an extended antiprismatic cage of Te atoms. At room temperature, TaTε4 has a commensurate modulation structure with a 2a × 2a × 3c unit cell. In NbTε4, an incommensurate modulation with × ∼ 16c axes is observed. Preliminary studies of the mixed compounds NbxTα1-xTε4 showed a discontinuous jump of the modulation wave vector commensurate to incommensurate when the Nb dopant concentration x, exceeded x ≃ 0.3, In this paper, the nature of the compositional dependence of is studied in greater detail and evidence is presented for a stepwise variation of . This constitutes the first direct evidence for a Devil's staircase in CDW materials.

scholarly journals Fermi surface evolution across multiple charge density wave transitions inErTe3

2010 ◽  
Vol 81 (7) ◽  
Author(s):  
R. G. Moore ◽  
V. Brouet ◽  
R. He ◽  
D. H. Lu ◽  
N. Ru ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Surface Evolution ◽  
Multiple Charge

Spectroscopic signatures of phase transitions in a charge-density-wave system: 1T-TaS2

1992 ◽  
Vol 46 (12) ◽  
pp. 7407-7412 ◽  
Author(s):  
B. Dardel ◽  
M. Grioni ◽  
D. Malterre ◽  
P. Weibel ◽  
Y. Baer ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave System ◽  
A Charge ◽  
Spectroscopic Signatures
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