Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1134/S002136401402009X

Аннотация: In this work, the effect of ZrO2 nanoparticles prepared in a low-pressure arc discharge plasma on magnetic flux pinning of granular YBa2Cu3O7 - y /nanoZrO(2) composites has been studied. It has been shown that the ZrO2 nanoparticles do not change the superconducting transition and the microstructure of superconductors. At a temperaПоказать полностьюture of 5 K, the addition of 0.5 and 1 wt % of ZrO2 nanoparticles may lead to the additional effect of magnetic flux pinning and the increase in the critical current density J (c). The J (c) value for composites with 1 wt % is two times larger than that for the reference sample. The fishtail effect is observed for YBa2Cu3O7 - y /nanoZrO(2) composites at the temperatures of 20 and 50 K. The problems associated with the additional effect of magnetic flux pinning of granular YBa2Cu3O7 - y /nanoZrO(2) composites and the appearance of the fishtail effect have been discussed.

Журнал: JETP LETTERS

Выпуск журнала: Vol. 99, Is. 2

Номера страниц: 99-103

ISSN журнала: 00213640

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Ushakov A.V. (Siberian Federal University)
• Karpov I.V. (Siberian Federal University)
• Lepeshev A.A. (Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences)
• Fedorov L.Y. (Siberian Federal University)
• Petrov M.I. (Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences)

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