High- superconductor studied by positron annihilation
- 1 January 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 37 (1), 603-606
- https://doi.org/10.1103/physrevb.37.603
Abstract
We have measured the positron-lifetime and the Doppler-broadening spectra in the high-temperature superconductor as a function of temperature between 77 and 295 K. Positron-lifetime and Doppler-broadening data show new features in the superconducting phase. These results are interpreted in terms of positron localization in lattice distortions and positron surface states.
Keywords
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