X-ray Optical Activity in Underdoped Bi-Based High-T_c Superconductor(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We performed X-ray optical activity (XOA) measurements at Cu K absorption edge for the underdoped Bi2212 (T_c=80K). X-ray natural circular dichroism (XNCD) appears below T^* (〜200K) and becomes larger with decreasing temperature, whereas nonreciprocal X-ray linear dichroism (NRXLD) is not seen. It is revealed that time reversal symmetry is preserved in the pseudogap phase of the underdoped Bi2212. The results demonstrate that XOA is a powerful tool to clarify electronic structure in terms of time reversal and/or chiral symmetry.
- 社団法人日本物理学会の論文
- 2006-05-15
著者
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KUBOTA Masato
Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organizat
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Oohara Yasuaki
Neutron Science Laboratory Institute For Solid State Physics University Of Tokyo
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Oohara Yasuaki
Neutron Scattering Laboratory Institute For Solid State Physics University Of Tokyo
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Eisaki Hiroshi
Aist Tsukuba Central 2
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Ono Kanta
Photon Factory Institute Of Materials Structure Science Kek
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Kubota Masato
Photon Factory Institute Of Materials Structure Science Kek
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Kubota Masato
Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio
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ONO Kanta
Photon Factory, Institute of Materials Structure Science, KEK
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OOHARA Yasuaki
Neutron Science Laboratory Institute for Solid State Physics, University of Tokyo
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KUBOTA Masato
Photon Factory, Institute of Materials Structure Science, KEK
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