scholarly journals Charge-density-wave surface phase slips and noncontact nanofriction

2014 ◽  
Vol 89 (24) ◽  
Author(s):  
Franco Pellegrini ◽  
Giuseppe E. Santoro ◽  
Erio Tosatti
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Surface Phase ◽  
Wave Surface ◽  
Phase Slips

scholarly journals Charge density wave surface phase slips and non-contact nanofriction

2016 ◽  
pp. 95-106
Author(s):  
Franco Pellegrini ◽  
Giuseppe E. Santoro ◽  
Erio Tosatti
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Surface Phase ◽  
Wave Surface ◽  
Phase Slips

Dynamics of charge density wave phase-slips in mesoscopic samples

2002 ◽  
Vol 12 (9) ◽  
pp. 165-168
Author(s):  
S. N. Artemenko
Keyword(s):  
Experimental Study ◽  
Theoretical Model ◽  
Charge Density ◽  
Qualitative Agreement ◽  
Charge Density Wave ◽  
Temporal Evolution ◽  
Density Wave ◽  
Thermal Fluctuations ◽  
Charge Density Wave Phase ◽  
Phase Slips

Theoretical model of current conversion from normal to collective current in mesoscopic samples of CDW conductors is presented. The current conversion is described in terms of phase slips (PS) induced by strain of the CDW and stimulated by thermal fluctuations. Kernels of PS situated near contacts are surrounded by long-range perturbations of the CDW phase. If spacing between contacts is shorter than decaying length of these perturbations then temporal evolution of PS at different contacts becomes correlated, and PS voltage decreases with spacing between the contacts decreasing. The results are in qualitative agreement with experimental study of current conversion in submicron NbSe3 wires.

Dimensional crossover of quantum nucleation processes in charge-density-wave phase slips

1998 ◽  
Vol 57 (4) ◽  
pp. R2003-R2005 ◽  
Author(s):  
Noriyuki Hatakenaka ◽  
Masato Shiobara ◽  
Ken-ichi Matsuda ◽  
Satoshi Tanda
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Dimensional Crossover ◽  
Wave Phase ◽  
Charge Density Wave Phase ◽  
Quantum Nucleation ◽  
Phase Slips

He-atom scattering study of the temperature-dependent charge-density-wave surface structure and lattice dynamics of 2H-TaSe2(001)

1990 ◽  
Vol 41 (9) ◽  
pp. 5707-5716 ◽  
Author(s):  
G. Brusdeylins ◽  
C. Heimlich ◽  
J. G. Skofronick ◽  
J. P. Toennies ◽  
R. Vollmer ◽  
...  
Keyword(s):  
Charge Density ◽  
Surface Structure ◽  
Charge Density Wave ◽  
Lattice Dynamics ◽  
Density Wave ◽  
Wave Surface ◽  
Temperature Dependent ◽  
Atom Scattering ◽  
Scattering Study ◽  
He Atom

Phase slips and switching in charge-density-wave transport

1988 ◽  
Vol 38 (18) ◽  
pp. 13047-13060 ◽  
Author(s):  
M. Inui ◽  
R. P. Hall ◽  
S. Doniach ◽  
A. Zettl
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Transport ◽  
Phase Slips

scholarly journals DFT molecular dynamics and free energy analysis of a charge density wave surface system

2019 ◽  
Vol 479 ◽  
pp. 260-264 ◽  
Author(s):  
Daniel G. Trabada ◽  
Jesús I. Mendieta-Moreno ◽  
Diego Soler-Polo ◽  
Fernando Flores ◽  
José Ortega
Keyword(s):  
Molecular Dynamics ◽  
Free Energy ◽  
Charge Density ◽  
Charge Density Wave ◽  
Energy Analysis ◽  
Density Wave ◽  
Wave Surface ◽  
Surface System ◽  
A Charge ◽  
Free Energy Analysis

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.

Wave Analysis of the Charge Density Wave Dynamics in the Molecular Conductor (Perylene)2Pt(mnt)2 (mnt=maleonitriledithiolate)

1995 ◽  
Vol 5 (5) ◽  
pp. 539-545 ◽  
Author(s):  
J. Dumas ◽  
N. Thirion ◽  
M. Almeida ◽  
E. B. Lopes ◽  
M. J. Matos ◽  
...  
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Wave Analysis ◽  
Wave Dynamics ◽  
Molecular Conductor
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