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Scanning tunneling microscopy and spectroscopy study of 4ax4a electronic charge order and the inhomogeneous pairing gap in superconducting Bi2Sr2CaCu2O8+δ

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Title: Scanning tunneling microscopy and spectroscopy study of 4ax4a electronic charge order and the inhomogeneous pairing gap in superconducting Bi2Sr2CaCu2O8+δ
Authors: Hashimoto, A. Browse this author
Momono, N. Browse this author
Oda, M. Browse this author
Ido, M. Browse this author →KAKEN DB
Issue Date: May-2006
Publisher: American Physical Society
Journal Title: Physical Review B
Volume: 74
Start Page: 064508
Publisher DOI: 10.1103/PhysRevB.74.064508
Abstract: We performed scanning tunneling microscopy and scanning tunneling spectroscopy (STS) measurements on underdoped Bi2212 crystals with doping levels p~0.11, ~0.13, and ~0.14 to examine the nature of the nondispersive 4a×4a charge order in the superconducting state at T≪Tc. The charge order appears conspicuously within the pairing gap, and low doping tends to favor the charge order. We point out the possibility that the 4a×4a charge order will be dynamical in itself, and pinned down over regions with effective pinning centers. The pinned 4a×4a charge order is closely related to the spatially inhomogeneous pairing gap structure, which has often been reported in STS measurements on high-Tc cuprates.
Rights: Copyright © 2006 American Physical Society
Relation: http://www.aps.org/
Type: article
URI: http://hdl.handle.net/2115/14723
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 伊土 政幸

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