| 高温超导体中磁场诱导的能量耗散行为的转变 |
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| 引用本文： | 闻海虎.高温超导体中磁场诱导的能量耗散行为的转变[J].物理,1999,28(2):65-67. |
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| 作者姓名： | 闻海虎 |
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| 作者单位： | 中国科学院物理研究所,中国科学院凝聚态物理中心,超导 |
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| 摘 要： | 高温超导体在强电方面应用的关键问题是如何克服磁通运动所造成的能量损耗。由于存在极强的各向异性，短的相干长度和小的磁通钉扎势，因此与磁通运动紧密相关的混合态相图变得很复杂，文章综述了根据一系列灵敏的电磁测量所观察到的磁场诱导的能量耗散行为的转变。
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| 关 键 词： | 磁通运动 KT转变 能量耗散 高Tc 超导体 |
FIELD INDUCED CROSSOVER OF CRITICALITIES OF ENERGY DISSIPATION IN HIGH TEMPERATURE SUPERCONDUCTORS |
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| Wen Haihu.FIELD INDUCED CROSSOVER OF CRITICALITIES OF ENERGY DISSIPATION IN HIGH TEMPERATURE SUPERCONDUCTORS[J].Physics,1999,28(2):65-67. |
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| Authors: | Wen Haihu |
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| Abstract: | One of the unsolved problems of the high power application of high temperature superconductors is how to lower the energy dissipation induced by flux motion.Due to the extremely high anisotropy,small coherence length and weak pinning potential,the mixed state phase diagram which is tightly related to the flux dynamics becomes very complicated.A brief account is given of the field induced crossover of criticalities of energy dissipation,which has been observed in our recent sensitive electromagnetic measurement. |
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| Keywords: | fluxmotion vortex glass dimensional crossover KT transition mixed state phase diagram |
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