Academic Journal

Broken Time-Reversal Symmetry in Superconducting Partially Filled Skutterudite Pr1−δ Pt4Ge12 *.

التفاصيل البيبلوغرافية
العنوان: Broken Time-Reversal Symmetry in Superconducting Partially Filled Skutterudite Pr1−δ Pt4Ge12 *.
المؤلفون: Jia-Wei Zang, Jian Zhang, Zi-Hao Zhu, Zhao-Feng Ding, Kevin Huang, Xiao-Ran Peng, Adrian D. Hillier, Lei Shu
المصدر: Chinese Physics Letters; Oct2019, Vol. 36 Issue 10, p1-1, 1p
مصطلحات موضوعية: SUPERCONDUCTING transition temperature, SKUTTERUDITE, X-ray diffraction measurement, SYMMETRY, TIME reversal, SPECIFIC heat, FULLERENES
مستخلص: Time reversal symmetry (TRS) is a key symmetry for classification of unconventional superconductors, and the violation of TRS often results in a wealth of novel properties. Here we report the synthesis and superconducting properties of the partially filled skutterudite Pr1 − δPt4Ge12. The results from x-ray diffraction and magnetization measurements show that the [Pt4Ge12] cage-forming structure survives and bulk superconductivity is preserved below the superconducting transition temperature Tc = 7.80 K. The temperature dependence of both the upper critical field and the electronic specific heat can be described in terms of a two-gap model, providing strong evidence of multi-band superconductivity. TRS breaking is observed using zero field muon-spin relaxation experiments, and the magnitude of the spontaneous field is nearly half of that in PrPt4Ge12. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
الوصف
تدمد:0256307X
DOI:10.1088/0256-307X/36/10/107402