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書誌事項

公開日
2006-08-18
権利情報
  • http://link.aps.org/licenses/aps-default-license
DOI
  • 10.1103/physrevb.74.064508
公開者
American Physical Society (APS)

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説明

We performed scanning tunneling microscopy and scanning tunneling spectroscopy (STS) measurements on underdoped Bi2212 crystals with doping levels $p\ensuremath{\sim}0.11$, $\ensuremath{\sim}0.13$, and $\ensuremath{\sim}0.14$ to examine the nature of the nondispersive $4a\ifmmode\times\else\texttimes\fi{}4a$ charge order in the superconducting state at $T⪡{T}_{c}$. 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 $4a\ifmmode\times\else\texttimes\fi{}4a$ charge order will be dynamical in itself, and pinned down over regions with effective pinning centers. The pinned $4a\ifmmode\times\else\texttimes\fi{}4a$ charge order is closely related to the spatially inhomogeneous pairing gap structure, which has often been reported in STS measurements on high-${T}_{c}$ cuprates.

収録刊行物

  • Physical Review B

    Physical Review B 74 (6), 064508–1-, 2006-08-18

    American Physical Society (APS)

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