Study of pseudogap phenomena by STM and other probes

A. Matsuda; S. Sugita; T. Fujii; T. Watanabe

doi:10.1016/S0022-3697(00)00102-5

Study of pseudogap phenomena by STM and other probes

A. Matsuda^*, S. Sugita, T. Fujii, T. Watanabe

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The temperature and doping dependence of the tunneling spectrum of Bi_2.1Sr_1.9CaCu₂O_x single crystals was obtained by using a low-temperature scanning tunneling microscope. Above T_c, for x≤8.27, the tunneling density of states shows a clear gap-like feature with a larger gap value than the superconducting one, while for x>8.27, it shows the feature expected from the conventional superconducting fluctuation (SCF). We determined the SCF component in the static susceptibility (χ). By subtracting the effect of the SCF from χ, we confirmed that the two pseudogap phase boundaries determined by the tunneling and χ coincide with each other.

Original language	English
Pages (from-to)	65-68
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	62
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-3697(00)00102-5
Publication status	Published - 2001 Jan
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1016/S0022-3697(00)00102-5

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title = "Study of pseudogap phenomena by STM and other probes",

abstract = "The temperature and doping dependence of the tunneling spectrum of Bi2.1Sr1.9CaCu2Ox single crystals was obtained by using a low-temperature scanning tunneling microscope. Above Tc, for x≤8.27, the tunneling density of states shows a clear gap-like feature with a larger gap value than the superconducting one, while for x>8.27, it shows the feature expected from the conventional superconducting fluctuation (SCF). We determined the SCF component in the static susceptibility (χ). By subtracting the effect of the SCF from χ, we confirmed that the two pseudogap phase boundaries determined by the tunneling and χ coincide with each other.",

author = "A. Matsuda and S. Sugita and T. Fujii and T. Watanabe",

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T1 - Study of pseudogap phenomena by STM and other probes

AU - Matsuda, A.

AU - Sugita, S.

AU - Fujii, T.

AU - Watanabe, T.

PY - 2001/1

Y1 - 2001/1

N2 - The temperature and doping dependence of the tunneling spectrum of Bi2.1Sr1.9CaCu2Ox single crystals was obtained by using a low-temperature scanning tunneling microscope. Above Tc, for x≤8.27, the tunneling density of states shows a clear gap-like feature with a larger gap value than the superconducting one, while for x>8.27, it shows the feature expected from the conventional superconducting fluctuation (SCF). We determined the SCF component in the static susceptibility (χ). By subtracting the effect of the SCF from χ, we confirmed that the two pseudogap phase boundaries determined by the tunneling and χ coincide with each other.

AB - The temperature and doping dependence of the tunneling spectrum of Bi2.1Sr1.9CaCu2Ox single crystals was obtained by using a low-temperature scanning tunneling microscope. Above Tc, for x≤8.27, the tunneling density of states shows a clear gap-like feature with a larger gap value than the superconducting one, while for x>8.27, it shows the feature expected from the conventional superconducting fluctuation (SCF). We determined the SCF component in the static susceptibility (χ). By subtracting the effect of the SCF from χ, we confirmed that the two pseudogap phase boundaries determined by the tunneling and χ coincide with each other.

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JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 1-2

ER -

Study of pseudogap phenomena by STM and other probes

Abstract

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