Anisotropic Resistivities of Precisely Oxygen Controlled Single-Crystal Bi2Sr2CaCu2O8+δ: Systematic Study on “Spin Gap” Effect

T. Watanabe, T. Fujii, A. Matsuda

研究成果: Article査読

308 被引用数 (Scopus)

抄録

The in-plane resistivity ρa(T) and the out-of-plane resistivity ρc(T) have been systematically measured for Bi2Sr2CaCu2O8+δ single crystals with their oxygen contents precisely controlled. In the underdoped region, deviation from T-linear in-plane resistivity, which evidences the opening of the “spin gap,” is clearly observed, while the out-of-plane resistivity is well reproduced by the activation-type phenomenological formula ρc(T) = (a/T) exp(ऴ/T) + c. In contrast to the YBa2Cu3O7-δ system, we find that the onset of the semiconducting ρc(T) does not coincide with the opening of the spin gap seen in the ρa(T) in this Bi2Sr2CaCu2O8+δ system.

本文言語English
ページ(範囲)2113-2116
ページ数4
ジャーナルPhysical Review Letters
79
11
DOI
出版ステータスPublished - 1997 9 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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「Anisotropic Resistivities of Precisely Oxygen Controlled Single-Crystal Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8+δ</sub>: Systematic Study on “Spin Gap” Effect」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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