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Superconductivity in Magnetically Ordered CeTe$_{1.82}$

M. H. Jung·A. Alsmadi·H. C. Kim·Yunkyu Bang·K. H. Ahn·K. Umeo·A. H. Lacerda·H. Nakotte·H. C. Ri·T. Takabatake
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Abstract

We report the discovery of pressure-induced superconductivity in a semimetallic magnetic material CeTe$_{1.82}$. The superconducting transition temperature $T_{SC}$ = 2.7 K (well below the magnetic ordering temperatures) under pressure ($>$ 2 kbar) is remarkably high, considering the relatively low carrier density due to a charge-density-wave transition associated with lattice modulation. The coexisting magnetic structure of a mixed ferromagnetism and antiferromagnetism can provide a clue for this high $T_{SC}$. We discuss a theoretical model for its possible pairing symmetry and pairing mechanism.

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M. H. Jung, A. Alsmadi, H. C. Kim, Yunkyu Bang, K. H. Ahn, K. Umeo, A. H. Lacerda, H. Nakotte, H. C. Ri, T. Takabatake. 2002-07-09. Superconductivity in Magnetically Ordered CeTe$_{1.82}$. https://doi.org/10.1103/physrevb.67.212504

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