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

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arxiv 0712.0382 v1 pith:E3CRJFLZ submitted 2007-12-03 cond-mat.supr-con cond-mat.str-el

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 This is my paper
classification cond-mat.supr-con cond-mat.str-el
keywords bulkcerhin5magneticstatetransitionambientambient-pressureanomaly
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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