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Extreme magnetic field-boosted superconductivity

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arxiv 1905.04343 v1 pith:BNNN5AOQ submitted 2019-05-10 cond-mat.supr-con

Sheng Ran , I-Lin Liu , Yun Suk Eo , Daniel J. Campbell , Paul Neves , Wesley T. Fuhrman , Shanta R. Saha , Christopher Eckberg
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Hyunsoo Kim Johnpierre Paglione David Graf John Singleton Nicholas P. Butch
This is my paper · ORCID
classification cond-mat.supr-con
keywords magneticsuperconductivityfieldsquantumreentrantexoticextremesuperconductor
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Applied magnetic fields underlie exotic quantum states, such as the fractional quantum Hall effect and Bose-Einstein condensation of spin excitations. Superconductivity, on the other hand, is inherently antagonistic towards magnetic fields. Only in rare cases can these effects be mitigated over limited fields, leading to reentrant superconductivity. Here, we report the unprecedented coexistence of multiple high-field reentrant superconducting phases in the spin-triplet superconductor UTe2. Strikingly, we observe superconductivity in the highest magnetic field range identified for any reentrant superconductor, beyond 65 T. These extreme properties reflect a new kind of exotic superconductivity rooted in magnetic fluctuations and boosted by a quantum dimensional crossover.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quasi-two-dimensional Fermi surfaces and unitary spin-triplet pairing in the heavy fermion superconductor UTe$_2$

    cond-mat.str-el 2019-08 conditional novelty 7.0 of 10

    UTe2 is predicted to host quasi-two-dimensional Fermi surfaces and a strong-spin-orbit-coupling unitary spin-triplet superconducting state with point nodes, ruling out non-unitary pairing.

  2. Novel universality class for the ferromagnetic transition in the low carrier concentration systems UTeS and USeS exhibiting large negative magnetoresistance

    cond-mat.str-el 2019-08 conditional novelty 6.0 of 10

    The ferromagnetic transitions in UTeS and USeS show critical exponents (beta around 0.30, gamma near 1.00, delta about 4.2 to 4.3) that differ from the 3D Ising model and resemble a common uranium-compound universality class.

  3. High-field moment polarization in the itinerant ferromagnet URhSi

    cond-mat.str-el 2019-09 conditional novelty 5.0 of 10

    URhSi shows a broad pseudo-metamagnetic crossover near 30-40 T for fields along b, with a magnetization step and resistivity maximum that resemble behavior in URhGe and UTe2.

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