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高Tc超导π环的自发磁化

物理学报, 2001, 50(11): 2217-2220.
DOI: 10.7498/aps.50.2217
CSTR: 32037.14.aps.50.2217

SPONTANEOUS MAGNETIZATION IN HIGH-Tc SUPERCONDUCTING π RINGS

Acta Phys. Sin., 2001, 50(11): 2217-2220.
DOI: 10.7498/aps.50.2217
CSTR: 32037.14.aps.50.2217
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  • 摘要

    分析和计算了Tsuei三晶实验中有一个结是π结的三结π环的自发磁化,发现与单结π环明显不同,当β=2πLIc/φ0趋于零时,环中仍有自发磁化.详细计算表明随温度下降,β值增大,自发磁化磁矩很快上升并趋于φ0/2.很好地说明了Tsuei的自发磁化温度曲线.

     

    Abstract

    We analyzed and calculated the spontaneous magnetization in High-Tc superconducting YB2Cu3O7-δ 1-junction and 3-junction rings which contained a π junction. We also deduced the temperature dependence of the spontaneous magnetization in 3-junction π ring. The theoretic results fit the experimental data fairly well.

     

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