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arXiv · 1904.07474

Spontaneous Magnetic Field near a Time-Reversal Symmetry Broken Surface State of YBCO

Kazuhiro Kuboki
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Abstract

Spatial distributions of spontaneous magnetic fields near a surface of cuprate high-$T_C$ superconductor YBCO with broken time-reversal symmetry are calculated using the Ginzburg-Landau theory derived from the $t-J$ model. It is found that the magnetic field exists in a narrow region inside the superconductor, and it decays quickly outside the surface. Experimental approaches possible to detect such spontaneous magnetic fields are discussed.

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Kazuhiro Kuboki. 2019-04-16. Spontaneous Magnetic Field near a Time-Reversal Symmetry Broken Surface State of YBCO. https://doi.org/10.7566/jpsj.88.095002

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