Origin of the checkerboard pattern in scanning tunneling microscopy maps of underdoped cuprate superconductors
Kai-Yu Yang, Wei-Qiang Chen, T. M. Rice, Fu-Chun Zhang
DOI 10.1103/PhysRevB.80.174505 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The checkerboard pattern in the differential conductance maps on underdoped cuprates appears when the scanning tunneling microscopy is placed above the O sites in the outermost CuO2 plane. In this position the interference between tunneling paths through the apical ions above the neighboring Cu sites leads to an asymmetric weighting of final states in the two antinodal regions of k space. The form of the asymmetry in the differential conductance spectra in the checkerboard pattern favors asymmetry in the localization length rather than a nematic displacement as the underlying origin.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ca2-xNaxCuO2Cl2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu4O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O6.5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Electronic properties of disordered valence-bond stripes in cuprate superconductors
similarity 0.94Matthias Vojta
Source status unknown — claims are unverified
Exact diagonalization study of the effects of Zn and Ni impurities on the pseudogap of underdoped cuprate high-Tc superconductors
similarity 0.94Jiří Vašátko & Dominik Munzar
Source status unknown — claims are unverified
Checkerboard charge density wave and pseudogap of high-Tc cuprate
similarity 0.94Jian-Xin Li et al.
Source status unknown — claims are unverified
Spin Excitations in Fluctuating Stripe Phases of Doped Cuprate Superconductors
similarity 0.93Matthias Vojta et al.
Source status unknown — claims are unverified
Weak Pseudogap Behavior in the Underdoped Cuprate Superconductors
similarity 0.93Jörg Schmalian et al.
Source status unknown — claims are unverified
Transformation of the superconducting gap to an insulating pseudogap at a critical hole density in the cuprates
similarity 0.93Ye-Hua Liu et al.
Source status unknown — claims are unverified