Temperature and doping dependence of the Bi2.1Sr1.9CaCu2O8+δ pseudogap and superconducting gap

Azusa Matsuda; Satoshi Sugita; Takao Watanabe

doi:10.1103/PhysRevB.60.1377

Temperature and doping dependence of the Bi_2.1Sr_1.9CaCu₂O_8+δ pseudogap and superconducting gap

Azusa Matsuda, Satoshi Sugita, Takao Watanabe

研究成果: Article › 査読

78 被引用数 (Scopus)

抄録

The temperature and doping dependence of Bi_2.1Sr_1.9CaCu₂O_8+δ vacuum tunneling spectra was measured. The tunneling spectra show a clear gaplike feature for almost all the measured temperatures (10–300 K) and doping levels [overdoped (T_c 80 K) to underdoped (T_c 80 K), via optimum-doped (T_c 90 K)]. The superconducting gap structure below T_c develops into a pseudogap above T_c. The model analysis based on the BCS-type density of states showed a sudden increase in the gap value and inelastic scattering rate at T_c.

本文言語	English
ページ（範囲）	1377-1381
ページ数	5
ジャーナル	Physical Review B - Condensed Matter and Materials Physics
巻	60
号	2
DOI	https://doi.org/10.1103/PhysRevB.60.1377
出版ステータス	Published - 1999
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

文献へのアクセス

10.1103/PhysRevB.60.1377

他のファイルとリンク

引用スタイル

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AB - The temperature and doping dependence of Bi2.1Sr1.9CaCu2O8+δ vacuum tunneling spectra was measured. The tunneling spectra show a clear gaplike feature for almost all the measured temperatures (10–300 K) and doping levels [overdoped (Tc 80 K) to underdoped (Tc 80 K), via optimum-doped (Tc 90 K)]. The superconducting gap structure below Tc develops into a pseudogap above Tc. The model analysis based on the BCS-type density of states showed a sudden increase in the gap value and inelastic scattering rate at Tc.

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