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arXiv · 1708.00628

Paramagnetic Meissner effect in ZrB12 single crystal with non-monotonic vortex-vortex interactions

Jun-Yi Ge·Vladimir N. Gladilin·Nikolay E. Sluchanko·A. Lyashenko·Volodimir B. Filipov·Joseph O. Indekeu·Victor V. Moshchalkov
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Abstract

The magnetic response related to paramagnetic Meissner effect (PME) is studied in a high quality single crystal ZrB12 with non-monotonic vortex-vortex interactions. We observe the expulsion and penetration of magnetic flux in the form of vortex clusters with increasing temperature. A vortex phase diagram is constructed which shows that the PME can be explained by considering the interplay among the flux compression, the different temperature dependencies of the vortex-vortex and the vortex-pin interactions, and thermal fluctuations. Such a scenario is in good agreement with the results of the magnetic relaxation measurements.

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Jun-Yi Ge, Vladimir N. Gladilin, Nikolay E. Sluchanko, A. Lyashenko, Volodimir B. Filipov, Joseph O. Indekeu, Victor V. Moshchalkov. 2017-08-02. Paramagnetic Meissner effect in ZrB12 single crystal with non-monotonic vortex-vortex interactions. https://doi.org/10.1088/1367-2630/aa8246

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