DIRECT VORTEX LATTICE IMAGING AND TUNNELING SPECTROSCOPY OF FLUX LINES ON YBA2CU3O7-DELTA

被引：531

作者：

MAGGIOAPRILE, I

RENNER, C

ERB, A

WALKER, E

FISCHER, O

机构：

[1] Département de Physique de la Matière Condensée, Université de Genève, CH-1211 Genève 4, 24, Quai E.-Ansermet

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.75.2754

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the observation of the flux line lattice in YBa2Cu3O7-delta by scanning tunneling microscopy. The measurements were carried out at 4.2 K and in a magnetic field of 6 T applied along the c axis. The vortices appear arranged in an oblique lattice in which the primitive vectors are nearly equal and form an angle of approximately 77 degrees. We also report local tunneling spectroscopy into a vortex con which reveals two peaks separated by about 11 meV. The zero-field spectra are reproducible over large areas of the sample and show a multiple peak structure.

引用

页码：2754 / 2757

页数：4

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