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

^*この研究の対応する著者

研究成果: Article › 査読

抄録

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.

本文言語	English
ページ（範囲）	931-932
ページ数	2
ジャーナル	Physica C: Superconductivity and its applications
巻	341-348
号	PART 3
DOI	https://doi.org/10.1016/S0921-4534(00)00741-3
出版ステータス	Published - 2000
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/S0921-4534(00)00741-3

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引用スタイル

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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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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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