Correlation of tunneling spectra in Bi2Sr2CaCu2O8+δ with the resonance spin excitation -: art. no. 067005

被引：149

作者：

Zasadzinski, JF ^{[1
]}

Ozyuzer, L

Miyakawa, N

Gray, KE

Hinks, DG

Kendziora, C

机构：

[1] IIT, Div Phys, Chicago, IL 60616 USA

[2] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[3] Izmir Inst Technol, Dept Phys, TR-35437 Izmir, Turkey

[4] Tokyo Univ Sci, Dept Appl Phys, Tokyo 162, Japan

[5] USN, Res Lab, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.87.067005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

New break-junction tunneling data are reported in Bi2Sr2CaCu2O8+delta over a wide range of hole concentration from underdoped (T-c = 74 K) to optimal doped (T-c = 95 K) to overdoped (T-c = 48 K). The conductances exhibit sharp dips at a voltage, Omega /e, measured with respect to the superconducting gap. Clear trends are found such that the dip strength is maximum at optimal doping and that fl scales as 4.9 kT(c) over the entire doping range. These features link the dip to the resonance spin excitation and suggest quasiparticle interactions with this mode are important for superconductivity.

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页码：67005 / 1

页数：4

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