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The H-T and P-T Phase Diagram of the Superconducting Phase in Pd:Bi2Te3

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Abstract

We study the magnetic field vs. temperature (H – T) and pressure vs. temperature (P – T) phase diagrams of the T c ≈ 5.5 K superconducting phase in Pd x Bi2Te3 (x ≈ 1) using electrical resistivity versus temperature measurements at various applied magnetic fields (H) and magnetic susceptibility versus temperature measurements at various applied magnetic fields (H) and pressure (P). The H – T phase diagram has an initial upward curvature as observed in some unconventional superconductors. The critical field extrapolated to T = 0 K is H c (0) ≈ 6–10 kOe. The T c is suppressed approximately linearly with pressure at a rate d T c /d P ≈ −0.28 K/GPa.

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Acknowledgments

We acknowledge the support of the X-ray facility at IISER Mohali for powder XRD measurements. YS acknowledges DST, India for support through Ramanujan Grant #SR/S2/RJN-76/2010 and through DST grant #SB/S2/CMP-001/2013.

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  1. Indian Institute of Science Education and Research Mohali, Sector 81, S. A. S. Nagar, Manauli PO 140306, India

    Amit & Yogesh Singh

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  1. Amit
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  2. Yogesh Singh
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Correspondence to Yogesh Singh.

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Amit, Singh, Y. The H-T and P-T Phase Diagram of the Superconducting Phase in Pd:Bi2Te3 . J Supercond Nov Magn 29, 1975–1979 (2016). https://doi.org/10.1007/s10948-016-3499-x

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  • DOI: https://doi.org/10.1007/s10948-016-3499-x

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