High-Tc superconductor YBa2Cu307-.5 studied by positron annihilation

Wang, S. J., Naidu, S. Y., Sharma, S. C., De, Dilip Kumar, Jeong, D. Y., Black, T. D., Krichene, S., Reynolds, J. R., OWENS, JOHN M.

High-Tc superconductor YBa2Cu307-.5 studied by positron annihilation

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Wang, S. J., Naidu, S. Y., Sharma, S. C., De, Dilip Kumar, Jeong, D. Y., Black, T. D., Krichene, S., Reynolds, J. R., OWENS, JOHN M.

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We have measured the positron-lifetime and the Doppler-broadening spectra in the hightemperature superconductor YBa2Cu30 7 - 6 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 posi~ron surface states.

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QH301 Biology

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https://repository.covenantuniversity.edu.ng/handle/123456789/34415

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High-Tc superconductor YBa2Cu307-.5 studied by positron annihilation

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