Pressure-Induced Antiferromagnetic Bulk Superconductor EuFe${}_2$As${}_2$

Abstract

We present the magnetic and superconducting phase diagram of EuFe${}_2$As${}_2$ for $B\parallel c$ and $B\parallel ab$. The antiferromagnetic phase of the Eu${}^{2+}$ moments is completely enclosed in the superconducting phase. The upper critical field vs. temperature curves exhibit strong concave curvatures, which can be explained by the Jaccarino-Peter compensation effect due to the antiferromagnetic exchange interaction between the Eu${}^{2+}$ moments and conduction electrons.

submitted to the proceedings of the M2S-IX Tokyo

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Cited by in corpus (3)

• Anion height dependence of Tc for the Fe-based superconductor
• Phase Diagram of Pressure-Induced Superconductivity in EuFe2As2 Probed by High-Pressure Resistivity up to 3.2 GPa
• Upper Critical Field of Pressure-Induced Superconductor EuFe${}_2$As${}_2$