Thermal conductivity of nonunitary triplet superconductors: application to UTe2.

التفاصيل البيبلوغرافية
العنوان:	Thermal conductivity of nonunitary triplet superconductors: application to UTe2.
المؤلفون:	Mishra, Vivek, Ge Wang, Hirschfeld, P. J., Yelgel, Övgü Ceyda, Kotetes, Panagiotis, Yi-feng Yang
المصدر:	Frontiers in Physics; 2024, p01-15, 15p
مصطلحات موضوعية:	THERMAL conductivity, SUPERCONDUCTORS, SUPERCONDUCTING transition temperature, HIGH temperature superconductors, ANGULAR momentum (Mechanics), MUON spin rotation, THERMAL conductivity measurement
مستخلص:	Considerable evidence shows that the heavy fermion material UTe2 is a spin-triplet superconductor, possibly manifesting time-reversal symmetry breaking, as measured by Kerr effect below the critical temperature, in some samples. Such signals can arise due to a chiral orbital state or possible nonunitary pairing. Although experiments at low temperatures appear to be consistent with point nodes in the spectral gap, the detailed form of the order parameter and even the nodal positions are not yet determined. Thermal conductivity measurements can extend to quite low temperatures, and varying the heat current direction should be able to provide information on the order parameter structure. Here, we derive a general expression for the thermal conductivity of a spin-triplet superconductor and use it to compare the low-temperature behavior of various states proposed for UTe2. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات:	Complementary Index

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