Direct Observation of Complete Fermi Surface, Imperfect Nesting, and Gap Anisotropy in the High-Temperature Incommensurate Charge-Density-Wave CompoundSmTe3

1998 ◽  
Vol 81 (4) ◽  
pp. 886-889 ◽  
Author(s):  
G.-H. Gweon ◽  
J. D. Denlinger ◽  
J. A. Clack ◽  
J. W. Allen ◽  
C. G. Olson ◽  
...  
Keyword(s):  
High Temperature ◽  
Fermi Surface ◽  
Charge Density ◽  
Direct Observation ◽  
Charge Density Wave ◽  
Density Wave ◽  
Gap Anisotropy

scholarly journals О природе магнитных осцилляций в высокотемпературных сверхпроводниках YBCO

2019 ◽  
Vol 61 (9) ◽  
pp. 1579
Author(s):  
П.Д. Григорьев ◽  
Т.И. Могилюк ◽  
Асет Хамзаулы
Keyword(s):  
High Temperature ◽  
Fermi Surface ◽  
Charge Density ◽  
Charge Density Wave ◽  
High Temperature Superconductors ◽  
Density Wave ◽  
Low Frequency ◽  
The Difference ◽  
Magnetic Oscillations

AbstractPossible causes of magnetic oscillations with a low frequency of about 2% of the Brillouin zone, observed in high-temperature superconductors of the YBCO family, are studied. A scenario is proposed in which the observed frequency is proportional to the difference of the bilayer-split closed pockets in the Fermi surface rebuilt due to scattering to charge-density-wave vectors. A method is proposed for experimental determination of which of the four possible scenarios for the rise of these magnetic oscillations is realized in YBCO.

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

scholarly journals Unitarity bound violation in holography and the instability toward the charge density wave

2020 ◽  
Vol 35 (22) ◽  
pp. 2050128
Author(s):  
Geunho Song ◽  
Yunseok Seo ◽  
Sang-Jin Sin
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
Fermi Surface ◽  
Charge Density ◽  
Spectral Function ◽  
Charge Density Wave ◽  
Density Wave ◽  
Surface Phenomena ◽  
Unitarity Bound ◽  
Conformal Field

We study the spectral function of holographic fermions with Pauli term. We find the [Formula: see text]-dependent instability signaled by the tachyonic spectrum ([Formula: see text]-gap) from the [Formula: see text] regime where unitarity is violated. We suggest that this is the instability toward the charge density wave (CDW) based on the similarity of the unitarity violation in conformal field theory (CFT) and the nesting Fermi surface phenomena in weakly interaction system: both of them give divergent enhancement of degree of freedom.

scholarly journals Energy Scale of the Charge Density Wave in Cuprate Superconductors

Proceedings ◽  
2019 ◽  
Vol 26 (1) ◽  
pp. 20
Author(s):  
Sacuto ◽  
Loret ◽  
Auvray ◽  
Civelli ◽  
Indranil ◽  
...  
Keyword(s):  
High Temperature ◽  
Charge Density ◽  
Charge Density Wave ◽  
Cuprate Superconductors ◽  
High Temperature Superconductors ◽  
Density Wave ◽  
Energy Scale ◽  
Hole Doping ◽  
Wide Range

The cuprate high temperature superconductors develop spontaneous charge density wave(CDW) order below a temperature TCDW and over a wide range of hole doping (p). [...]

scholarly journals Direct observation of incommensurate charge-density wave in overdoped manganites

2018 ◽  
Vol 5 ◽  
pp. 7-11 ◽  
Author(s):  
Y.M. Wang ◽  
B.H. Ge ◽  
Y.X. Cui ◽  
R.C. Yu ◽  
S. Chen ◽  
...  
Keyword(s):  
Charge Density ◽  
Direct Observation ◽  
Charge Density Wave ◽  
Density Wave
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