Low-energy structures in vortex core tunneling spectra in Bi2Sr2CaCu2O8+δ

被引：30

作者：

Hoogenboom, BW

Renner, C

Revaz, B

Maggio-Aprile, I

Fischer, O

机构：

[1] Univ Geneva, DPMC, CH-1211 Geneva 4, Switzerland

[2] NEC Res Inst, Princeton, NJ 08540 USA

来源：

PHYSICA C | 2000年 / 332卷 / 1-4期

关键词：

scanning tunneling spectroscopy; mixed state; low-energy structures;

D O I：

10.1016/S0921-4534(99)00720-0

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Scanning tunneling spectroscopy allows us to study the changes in the quasiparticle local density of states due to the presence of vortex cores in Bi2Sr2CaCu2O8+delta (BSCCO). The vortex core spectra are characterized by a gap-like structure similar to the pseudogap measured above T-c. We also observe small spectral structures inside the gap in the vortex cores. The observed low-energy structures are weaker than what one expects for localized quasiparticle excitations. (C) 2000 Elsevier Science B.V. All rights reserved.

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收藏

页码：440 / 444

页数：5

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