Critical Current Anisotropy and Vortex Pinning in NaFe0.935Co0.065As Single Crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 23 января 2026 г.
Аннотация:In this work, the nature of vortex pinning has been investigated in overdoped NaFe(0.935)Co(0.065)As single crystals. We obtain temperature and field dependences of the critical current density from the magnetic hysteresis loops measured for two field orientations B || ab and B || c. The obtained magnetic anisotropy is about γ ≈ 10 near Tc and drops to about γ ≈ 2 at temperatures below 12 K. Using a Dew-Hughes model, we calculate the normalized pinning force and discuss the pinning nature in NaFe(0.935)Co(0.065)As.