scholarly journals Nonequilibrium Dynamical Mean-Field Theory for the Charge-Density-Wave Phase of the Falicov-Kimball Model

2015 ◽  
Vol 29 (3) ◽  
pp. 581-585 ◽  
Author(s):  
O. P. Matveev ◽  
A. M. Shvaika ◽  
T. P. Devereaux ◽  
J. K. Freericks
Keyword(s):  
Field Theory ◽  
Charge Density ◽  
Charge Density Wave ◽  
Mean Field Theory ◽  
Density Wave ◽  
Mean Field ◽  
Dynamical Mean Field Theory ◽  
Wave Phase ◽  
Charge Density Wave Phase

Ferromagnetism, Dimerization, Charge and Spin Density Waves in Quasi-One-Dimensional Organic Polymers: Self-Consistent Mean Field Theory

1998 ◽  
Vol 12 (20) ◽  
pp. 2031-2044 ◽  
Author(s):  
Shi-Dong Liang ◽  
Qianghua Wang ◽  
Z. D. Wang ◽  
Shun-Qing Shen
Keyword(s):  
Field Theory ◽  
Charge Density ◽  
Spin Density ◽  
Charge Density Wave ◽  
Mean Field Theory ◽  
Density Wave ◽  
Mean Field ◽  
One Dimensional ◽  
Ferromagnetic Order ◽  
Self Consistent

We address the low temperature properties of quasi-one-dimensional organic polymers, which may be described by a modified Anderson lattice-Su–Schrieffer–Heeger Hamiltonian. The condition and nature of various orders, such as, the ferromagnetic order, the dimerization order, the charge density wave order and the spin density wave order, are analyzed by a self-consistent mean field theory. Analytical results are obtained for a specific case. The topological structure of the chain leads to a flatband structure of the energy band, which gives rise to a ferromagnetic order in the case of half filling at low temperatures. The on-site Coulomb repulsion enhances the ferromagnetic order, while the nearest-neighbor interaction (V) suppresses both the ferromagnetic order and the dimerization, and leads to the charge density wave. The π–d hybridization (td) suppresses the dimerization, and does not affect the magnetization. The ferromagnetic order and dimerization order coexist for weak td.

scholarly journals Ultrafast spot-profile LEED of a charge-density wave phase transition

2021 ◽  
Vol 118 (22) ◽  
pp. 221603
Author(s):  
G. Storeck ◽  
K. Rossnagel ◽  
C. Ropers
Keyword(s):  
Phase Transition ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Phase ◽  
Charge Density Wave Phase ◽  
A Charge

Layer Number Dependence of Charge Density Wave Phase Transition Between Nearly-Commensurate and Incommensurate Phases in 1T-TaS2

2020 ◽  
Vol 124 (49) ◽  
pp. 27176-27184
Author(s):  
Yasushi Ishiguro ◽  
Kirill Bogdanov ◽  
Naoko Kodama ◽  
Mizuki Ogiba ◽  
Tatsuya Ohno ◽  
...  
Keyword(s):  
Phase Transition ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Layer Number ◽  
Wave Phase ◽  
Charge Density Wave Phase ◽  
Incommensurate Phases

scholarly journals Ultrafast dynamics in the high-symmetry and in the charge density wave phase of 2H−NbSe2

2020 ◽  
Vol 102 (20) ◽  
Author(s):  
A. Anikin ◽  
R. D. Schaller ◽  
G. P. Wiederrecht ◽  
E. R. Margine ◽  
I. I. Mazin ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Ultrafast Dynamics ◽  
High Symmetry ◽  
Wave Phase ◽  
Charge Density Wave Phase
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