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a-b Plane Anisotropy of the Superconducting Gap in Bi 2 Sr 2 CaCu 2 O 8 : Scanning Tunneling Microscope Spectroscopy
| Content Provider | Semantic Scholar |
|---|---|
| Author | Suzuki, Keiichi Ichimura, Koichi Nomura, Kiyohide Takekawa, Shunji |
| Copyright Year | 1999 |
| Abstract | We have carried out electron tunneling spectroscopy on Bi2Sr2CaCu2O8 single crystals with use of STM at 4.2 K. The tunneling differential conductance in the superconducting gap was observed with varying tunneling direction in the a-b plane. Tunneling spectra observed along directions intermediate between Cu-O and Cu-Cu directions are well fitted with the dx22y2 wave model, taking into account the k dependence of the tunneling transition probability. This result strongly indicates that the superconducting gap has the dx22y2 wave symmetry with line nodes along the Cu-Cu direction. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://exp-ap.eng.hokudai.ac.jp/~ichimura/Manuscripts/PRL99.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |