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arXiv 1604.03565cond-mat.supr-con
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超导体向正常相变中超导电流的动量消失

The disappearing momentum of the supercurrent in the superconductor to normal phase transformation

J. E. Hirsch

摘要:

在磁场中的超导体具有表面电流,该电流阻止磁场穿透其内部。这些水流携带着动能和机械动量。当温度升高并且系统变得正常时,电流消失。洋流的动能和机械动量去了哪里,又是如何去的?在这里,我们提出这个问题的答案揭示了材料成为超导体的一个关键必要条件,这不是传统BCS-伦敦理论的一部分:超导材料需要有空穴载流子。

英文摘要:

A superconductor in a magnetic field has surface currents that prevent the magnetic field from penetrating its interior. These currents carry kinetic energy and mechanical momentum. When the temperature is raised and the system becomes normal the currents disappear. Where do the kinetic energy and mechanical momentum of the currents go, and how? Here we propose that the answer to this question reveals a key necessary condition for materials to be superconductors, that is not part of conventional BCS-London theory: superconducting materials need to have hole carriers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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