Unusual Nernst Effect Suggesting Time-Reversal Violation in the Striped Cuprate Superconductor La2−xBaxCuO4
Lu Li, N. Alidoust, J. M. Tranquada, G. D. Gu, N. P. Ong
DOI 10.1103/PhysRevLett.107.277001 · Physical Review Letters
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 striped cuprate La2−xBaxCuO4 (x=18) undergoes several transitions below the charge-ordering temperature Tco=54 K. From Nernst experiments, we find that, below Tco, there exists a large, anomalous Nernst signal eN,even(H,T) that is symmetric in field H, and remains finite as H→0. The time-reversal violating signal suggests that, below Tco, vortices of one sign are spontaneously created to relieve interlayer phase frustration.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xBaxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 5 | Pressure not reported | zero_resistance |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Theory of Nernst effect in high-Tc superconductors
similarity 0.96Bui Duc Tinh & Baruch Rosenstein
Source status unknown — claims are unverified
Charge Excitations in the Stripe-Ordered La5/3Sr1/3NiO4 and La2−x(Ba,Sr)xCuO4 Superconducting Compounds
similarity 0.95S. Wakimoto et al.
Source status unknown — claims are unverified
Using Uniaxial Stress to Probe the Relationship between Competing Superconducting States in a Cuprate with Spin-stripe Order
similarity 0.94Z. Guguchia et al.
Source status unknown — claims are unverified
Dynamical Layer Decoupling in a Stripe-Ordered High-Tc Superconductor
similarity 0.94E. Berg et al.
Source status unknown — claims are unverified
Anomalous properties and microstructural model of superconductivity in La2−x(Ba,Sr)xCuO4
similarity 0.94J. C. Phillips & Karin M. Rabe
Source status unknown — claims are unverified
Nernst and Seebeck Coefficients of the Cuprate Superconductor YBa2Cu3O6.67: A Study of Fermi Surface Reconstruction
similarity 0.94J. Chang et al.
Source status unknown — claims are unverified