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Equilibrium Phase with Broken Time-Reversal Symmetry in Ceramic High- Tc Superconductors

Hikaru Kawamura, Mai Suan Li

DOI 10.1103/PhysRevLett.78.1556 · Physical Review Letters

T1

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Abstract

Possible occurrence of an equilibrium thermodynamic phase with spontaneously broken time-reversal symmetry is studied in a model ceramic superconductor with anisotropic pairing symmetry. It is shown by Monte Carlo simulations that such a “chiral-glass” phase is stable even under the influence of screening. Critical exponents associated with the chiral-glass transition are close to those of the Ising spin glass.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
YBa2Cu4O8

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—Pressure not reportedunknown

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