Abstract
Significant gap anisotropy within the a-b plane of Bi2Sr2CaCu2O8 has been observed with a low temperature scanning tunneling microscope. The energy gap is largest along the a-axis direction, with Δp-p=36.6 meV and decreases gradually to a value of 23 meV along the direction 45°from the a axis. The tunneling data have been fit well using a simple model which assumes a d-wave-pairing energy gap, and allows tunneling in all directions close to the normal of the surface.
| Original language | English |
|---|---|
| Pages (from-to) | 128-131 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 72 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1994 |
ASJC Scopus subject areas
- General Physics and Astronomy
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