scholarly journals Model of phase fluctuations in a latticed-wave superconductor: Application to the Cooper-pair charge-density wave in underdoped cuprates

2005 ◽  
Vol 71 (21) ◽  
Author(s):  
Ashot Melikyan ◽  
Zlatko Tešanović
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Cooper Pair ◽  
Density Wave ◽  
Phase Fluctuations ◽  
Underdoped Cuprates

Magnitude of spin and charge density wave amplitudes in underdoped cuprates

2000 ◽  
Vol 19 (3-4) ◽  
pp. 355-362 ◽  
Author(s):  
M. Eremin ◽  
S. Varlamov ◽  
I. Eremin
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Underdoped Cuprates

scholarly journals Orbital symmetries of charge density wave order in YBa2Cu3O6+x

2020 ◽  
Vol 6 (45) ◽  
pp. eaay0345
Author(s):  
Christopher McMahon ◽  
A. J. Achkar ◽  
E. H. da Silva Neto ◽  
I. Djianto ◽  
J. Menard ◽  
...  
Keyword(s):  
Form Factor ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Charge Order ◽  
Orbital Symmetry ◽  
Pronounced Difference ◽  
Enhanced Sensitivity ◽  
X Ray Scattering ◽  
Underdoped Cuprates

Charge density wave (CDW) order has been shown to compete and coexist with superconductivity in underdoped cuprates. Theoretical proposals for the CDW order include an unconventional d-symmetry form factor CDW, evidence for which has emerged from measurements, including resonant soft x-ray scattering (RSXS) in YBa2Cu3O6+x (YBCO). Here, we revisit RSXS measurements of the CDW symmetry in YBCO, using a variation in the measurement geometry to provide enhanced sensitivity to orbital symmetry. We show that the (0 0.31 L) CDW peak measured at the Cu L edge is dominated by an s form factor rather than a d form factor as was reported previously. In addition, by measuring both (0.31 0 L) and (0 0.31 L) peaks, we identify a pronounced difference in the orbital symmetry of the CDW order along the a and b axes, with the CDW along the a axis exhibiting orbital order in addition to charge order.

scholarly journals Interplay between pair- and charge-density-wave orders in underdoped cuprates

2015 ◽  
Vol 91 (11) ◽  
Author(s):  
Yuxuan Wang ◽  
Daniel F. Agterberg ◽  
Andrey Chubukov
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Underdoped Cuprates

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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