Two Superconducting Phases in CeRh_1-xIr_xIn_5

H. A. Borges; J. D. Thompson; J. L. Sarrao; M. Nicklas; P. G. Pagliuso; V. A. Sidorov

arxiv: cond-mat/0405636 · v1 · submitted 2004-05-27 · ❄️ cond-mat.str-el · cond-mat.supr-con

Two Superconducting Phases in CeRh₁-xIr_xIn₅

M. Nicklas , V. A. Sidorov , H. A. Borges , P. G. Pagliuso , J. L. Sarrao , J. D. Thompson This is my paper

classification ❄️ cond-mat.str-el cond-mat.supr-con

keywords cerhphasephasessuperconductingantiferromagneticarisececucooper

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Pressure studies of CeRh_1-xIr_xIn_5 indicate two superconducting phases as a function of x, one with T_c >= 2 K for x < 0.9 and the other with T_c < 1.2 K for x > 0.9. The higher T_c phase, phase-1, emerges in proximity to an antiferromagnetic quantum-critical point; whereas, Cooper pairing in the lower T_c phase-2 is inferred to arise from fluctuations of a yet to be found magnetic state. The T-x-P phase diagram of CeRh_1-xIr_xIn_5, though qualitatively similar, is distinctly different from that of CeCu_2(Si_1-xGe_x)_2.

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Two Superconducting Phases in CeRh₁-xIr_xIn₅

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