Origin of shadow bands in single-layered Bi₂Sr₂CuO_6+δ studied by high-resolution angle-resolved photoemission spectroscopy

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• 作者：K. Nakayama ; T. Sato ; T. Dobashi ; T. Takahashi ; T. Kondo ; T. Takeuchi ; K. Kudo ; N. Kobayashi
• 关键词：Superconductor ; Shadow band ; ARPES
• 刊名：Physica C
• 出版年：2007
• 出版时间：1 September 2007
• 年：2007
• 卷：460-462
• 期：Complete
• 页码：931-933
• 全文大小：232 K

文摘

We report systematic high-resolution angle-resolved photoemission results on single-layered Pb-substituted Bi₂Sr₂CuO_6+δ. We found that the intensity of shadow bands is invariable with respect to temperature and doping. This result rules out the possibility of short-range antiferromagnetic correlation and supports the structural origin of shadow bands.