Correlation between Fermi arc and charge order resulting from the momentum-dependent self-energy correction in cuprates

2017 ◽  
Vol 96 (12) ◽  
Author(s):  
Le Quy Duong ◽  
Tanmoy Das
Keyword(s):  
Charge Order ◽  
Fermi Arc ◽  
Energy Correction ◽  
Self Energy

Nature of charge order in cuprate superconductors

2016 ◽  
Vol 30 (13) ◽  
pp. 1642005
Author(s):  
Shiping Feng ◽  
Deheng Gao ◽  
Huaisong Zhao
Keyword(s):  
Hot Spots ◽  
Cuprate Superconductors ◽  
Charge Order ◽  
Theoretical Work ◽  
Fermi Arc ◽  
Self Energy ◽  
Fermi Arcs ◽  
Arc Instability ◽  
Microscopic Origin ◽  
Order State

The recently discovered charge order is an intrinsic and universal property of cuprate superconductors, however, its microscopic origin remains debated. Here we review briefly the theoretical work about the nature of charge order in cuprate superconductors. In particular, we show that the electron self-energy obliterates the electron Fermi surface around the antinodal region, leaving behind disconnected Fermi arcs located around the nodal region. The charge-order state on the other hand is driven by the Fermi-arc instability, with a characteristic wavevector corresponding to the hot spots of the Fermi arcs rather than the antinodal nesting vector. Since the pseudogap emanates from the electron self-energy, the Fermi arc, charge order, and pseudogap in cuprate superconductors are intimately related each other.

scholarly journals Charge order lock-in by electron-phonon coupling in La1.675Eu0.2Sr0.125CuO4

2021 ◽  
Vol 7 (27) ◽  
pp. eabg7394
Author(s):  
Qisi Wang ◽  
Karin von Arx ◽  
Masafumi Horio ◽  
Deepak John Mukkattukavil ◽  
Julia Küspert ◽  
...  
Keyword(s):  
Wave Vector ◽  
Charge Order ◽  
Charge Ordering ◽  
Electron Interaction ◽  
Phonon Coupling ◽  
Electron Phonon Interaction ◽  
Self Energy ◽  
Electron Phonon Coupling ◽  
Charge Stripe ◽  
Lock In

Charge order is universal to all hole-doped cuprates. Yet, the driving interactions remain an unsolved problem. Electron-electron interaction is widely believed to be essential, whereas the role of electron-phonon interaction is unclear. We report an ultrahigh-resolution resonant inelastic x-ray scattering (RIXS) study of the in-plane bond-stretching phonon mode in stripe-ordered cuprate La1.675Eu0.2Sr0.125CuO4. Phonon softening and lifetime shortening are found around the charge ordering wave vector. In addition to these self-energy effects, the electron-phonon coupling is probed by its proportionality to the RIXS cross section. We find an enhancement of the electron-phonon coupling around the charge-stripe ordering wave vector upon cooling into the low-temperature tetragonal structure phase. These results suggest that, in addition to electronic correlations, electron-phonon coupling contributes substantially to the emergence of long-range charge-stripe order in cuprates.

scholarly journals Self-energy correction to dynamic polaron responses

2014 ◽  
Vol 89 (4) ◽  
Author(s):  
Dries Sels ◽  
Fons Brosens
Keyword(s):  
Energy Correction ◽  
Self Energy

scholarly journals Self-Energy Correction to the Hyperfine Structure Splitting of Hydrogenlike Atoms

1996 ◽  
Vol 76 (9) ◽  
pp. 1433-1436 ◽  
Author(s):  
H. Persson ◽  
S. M. Schneider ◽  
W. Greiner ◽  
G. Soff ◽  
I. Lindgren
Keyword(s):  
Hyperfine Structure ◽  
Energy Correction ◽  
Self Energy ◽  
Structure Splitting

Fermi-arc superconductivity, pseudogap and charge order in Bi2Sr2CaCu2O8+δ

2008 ◽  
Vol 69 (9) ◽  
pp. 2265-2267
Author(s):  
T. Kurosawa ◽  
M. Oda ◽  
Y.H. Liu ◽  
K. Takeyama ◽  
N. Momono ◽  
...  
Keyword(s):  
Charge Order ◽  
Fermi Arc
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