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arXiv · 0712.0382

Ambient-pressure bulk superconductivity deep in the magnetic state of CeRhIn5

Johnpierre Paglione·P. -C. Ho·M. B. Maple·M. A. Tanatar·Louis Taillefer·Y. Lee·C. Petrovic
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Abstract

Specific heat, magnetic susceptibility and electrical transport measurements were performed at ambient pressure on high-quality single crystal specimens of CeRhIn5 down to ultra-low temperatures. We report signatures of an anomaly observed in all measured quantities consistent with a bulk phase transition to a superconducting state at T_c=110 mK. Occurring far below the onset of antiferromagnetism at T_N=3.8 K, this transition appears to involve a significant portion of the available low-temperature density of electronic states, exhibiting an entropy change in line with that found in other members of the 115 family of superconductors tuned away from quantum criticality.

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Johnpierre Paglione, P. -C. Ho, M. B. Maple, M. A. Tanatar, Louis Taillefer, Y. Lee, C. Petrovic. 2007-12-03. Ambient-pressure bulk superconductivity deep in the magnetic state of CeRhIn5. https://doi.org/10.1103/physrevb.77.100505

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