EXCITATION SPECTRUM OF A SUPERCONDUCTING SPHERE IN A SUPERCONDUCTING HOST - EFFECTS OF PHASE FLUCTUATIONS

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题名:	EXCITATION SPECTRUM OF A SUPERCONDUCTING SPHERE IN A SUPERCONDUCTING HOST - EFFECTS OF PHASE FLUCTUATIONS
作者:	HUI,PM;STROUD,D
贡献者:	物理研究所
关键词:	SINGLE-PARTICLE EXCITATIONS;COMPOSITES;DENSITY;STATES
日期:	1991
上传时间:	2010-07-08 14:14:00 (UTC+8)
出版者:	中央大學
摘要:	We consider the excitation spectrum of a superconducting sphere embedded in a superconducting host. The sphere and host are assumed to have order parameters of the same magnitude, but different phases. For finite phase differences, we show that there exist states with energies below the superconducting gap. The energies of these states are studied as a function of the size of the superconducting sphere. We consider implications of these results for optical studies in high-temperature superconductors.
關聯:	PHYSICAL REVIEW B
显示于类别:	[物理研究所] 期刊論文

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