It was recently discovered that charge density wave (CDW) order also occurs in the superconducting phase of uranium ditelluride (UTe2). Unexpectedly, in the presence of an external magnetic field, the CDWs are suppressed and disappear above the superconducting upper critical field of UTe2. In this talk, we show that the behavior of the CDWs is explained by the existence of spin-triplet pair-density waves (PDWs) that coexist with the uniform spin-triplet superconductivity of UTe2. The combination of PDWs and uniform superconductivity gives rise to daughter CDWs, and the daughter CDWs inherit the magnetic field sensitivities of the parent PDW and superconducting orders. These results indicate that UTe2 potentially hosts the first known example of a triplet PDW state.
*STM studies at the University of Illinois, Urbana-Champaign were supported by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES), Materials Sciences and Engineering Division under Award No. DE-SC0022101. V.M. acknowledges partial support from Gordon and Betty More Foundation's EPiQS Initiative through grant GBMF4860 and the Quantum Materials Program at CIFAR where she is a Fellow. Theoretical work was supported in part by the US National Science Foundation through the grant DMR 1725401 at the University of Illinois (E.F., L.N.) and by a fellowship of the Institute for Condensed Matter Theory of the University of Illinois (L.N.). J.M.M. thanks ARO MURI Grant No. W911NF2020166 for support.
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Publication:arXiv:2207.09491
Presenters
Eduardo H Fradkin
University of Illinois
University of Illinois at Urbana-Champaign
University of Illinois Urbana-Champaign
Authors
Julian May-Mann
University of Illinois at Urbana-Champai
University of Illinois at Urbana-Champaign
Eduardo H Fradkin
University of Illinois
University of Illinois at Urbana-Champaign
University of Illinois Urbana-Champaign
Anuva Aishwarya
University of Illinois at Urbana Champaign
Vidya Madhavan
University of Illinois at Urbana-Champaign
University of Illinois Urbana-Champaign
Laimei Nie
University of Illinois, Urbana Champaign, Purdue University
Purdue University; University of Illinois Urbana-Champaign
University of Illinois at Urbana-Champai
Purdue University, University of Illinois at Urbana-Champaign
