Second magnetization peak, anomalous field penetration, and Josephson vortices in KCa $$_2$$ 2 Fe $$_4$$ 4 As $$_4$$ 4 F $$_2$$ 2 bilayer pnictide superconductor
Abstract We performed magnetization measurements in a single crystal of the anisotropic bilayer pnictide superconductor KCa $$_2$$ 2 Fe $$_4$$ 4 As $$_4$$ 4 F $$_2$$ 2 , with $$T_c\;$$ T c $$\simeq$$ ≃ 34 K, for $$H$$ H $$\parallel$$ ‖ $$c$$ c -axis and $$H$$ H $$\parallel$$ ‖ $$ab$$ ab -planes. A s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-24012-z |