Pseudogap in Bi2Sr2CaCu2O8+δ studied by measuring anisotropic susceptibilities and out-of-plane transport

Takao Watanabe; Takenori Fujii; Azusa Matsuda

doi:10.1016/S0921-4534(00)00741-3

Pseudogap in Bi₂Sr₂CaCu₂O_8+δ studied by measuring anisotropic susceptibilities and out-of-plane transport

Takao Watanabe^*, Takenori Fujii, Azusa Matsuda

^*Corresponding author for this work

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

Abstract

We find in the Bi₂Sr₂CaCu₂O_8+δ system that the characteristic temperatures T_χ* (below which the uniform susceptibilities χ_ab(T] (H ⊥ c) and χ_c(T) (H ∥ c) decrease) and T_ρc* (below which the out-of-plane resistivity ρ_c(T] shows typical upturn) coincide for all doping levels. We attribute the T dependence of χ's and ρ_c to the anomalous (pseudogapped) density-of-states (DOS) in high-T_c cuprates. In addition, an analysis of the anisotropy in the T dependence of χ's shows that the high-temperature component (dχ/dT < 0) is also caused by a DOS effect.

Original language	English
Pages (from-to)	931-932
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	341-348
Issue number	PART 3
DOIs	https://doi.org/10.1016/S0921-4534(00)00741-3
Publication status	Published - 2000
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(00)00741-3

Cite this

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title = "Pseudogap in Bi2Sr2CaCu2O8+δ studied by measuring anisotropic susceptibilities and out-of-plane transport",

abstract = "We find in the Bi2Sr2CaCu2O8+δ system that the characteristic temperatures Tχ* (below which the uniform susceptibilities χab(T] (H ⊥ c) and χc(T) (H ∥ c) decrease) and Tρc* (below which the out-of-plane resistivity ρc(T] shows typical upturn) coincide for all doping levels. We attribute the T dependence of χ's and ρc to the anomalous (pseudogapped) density-of-states (DOS) in high-Tc cuprates. In addition, an analysis of the anisotropy in the T dependence of χ's shows that the high-temperature component (dχ/dT < 0) is also caused by a DOS effect.",

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doi = "10.1016/S0921-4534(00)00741-3",

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T1 - Pseudogap in Bi2Sr2CaCu2O8+δ studied by measuring anisotropic susceptibilities and out-of-plane transport

AU - Watanabe, Takao

AU - Fujii, Takenori

AU - Matsuda, Azusa

PY - 2000

Y1 - 2000

N2 - We find in the Bi2Sr2CaCu2O8+δ system that the characteristic temperatures Tχ* (below which the uniform susceptibilities χab(T] (H ⊥ c) and χc(T) (H ∥ c) decrease) and Tρc* (below which the out-of-plane resistivity ρc(T] shows typical upturn) coincide for all doping levels. We attribute the T dependence of χ's and ρc to the anomalous (pseudogapped) density-of-states (DOS) in high-Tc cuprates. In addition, an analysis of the anisotropy in the T dependence of χ's shows that the high-temperature component (dχ/dT < 0) is also caused by a DOS effect.

AB - We find in the Bi2Sr2CaCu2O8+δ system that the characteristic temperatures Tχ* (below which the uniform susceptibilities χab(T] (H ⊥ c) and χc(T) (H ∥ c) decrease) and Tρc* (below which the out-of-plane resistivity ρc(T] shows typical upturn) coincide for all doping levels. We attribute the T dependence of χ's and ρc to the anomalous (pseudogapped) density-of-states (DOS) in high-Tc cuprates. In addition, an analysis of the anisotropy in the T dependence of χ's shows that the high-temperature component (dχ/dT < 0) is also caused by a DOS effect.

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Pseudogap in Bi₂Sr₂CaCu₂O_8+δ studied by measuring anisotropic susceptibilities and out-of-plane transport

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