Pixley, J.H.Deng, LiliIngersent, KevinSi, Qimiao2016-06-102016-06-102015Pixley, J.H., Deng, Lili, Ingersent, Kevin, et al.. "Pairing correlations near a Kondo-destruction quantum critical point." <i>Physical Review B,</i> 91, no. 20 (2015) American Physical Society: 201109(R). http://dx.doi.org/10.1103/PhysRevB.91.201109.https://hdl.handle.net/1911/90502Motivated by the unconventional superconductivity observed in heavy-fermion metals, we investigate pairing susceptibilities near a continuous quantum phase transition of the Kondo-destruction type. We solve two-impurity Bose-Fermi Anderson models with Ising and Heisenberg forms of the interimpurity exchange interaction using continuous-time quantum Monte Carlo and numerical renormalization-group methods. Each model exhibits a Kondo-destruction quantum critical point separating Kondo-screened and local-moment phases. For antiferromagnetic interimpurity exchange interactions, singlet pairing is found to be enhanced in the vicinity of the transition. Implications of this result for heavy-fermion superconductivity are discussed.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1103/PhysRevB.91.201109