Pith. sign in

REVIEW 5 cited by

Superconductivity and normal-state transport in compressively strained La$_2$PrNi$_2$O$_7$ thin films

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2501.08022 v2 pith:CMP2YBYP submitted 2025-01-14 cond-mat.supr-con cond-mat.mtrl-sci

Yidi Liu , Eun Kyo Ko , Yaoju Tarn , Lopa Bhatt , Jiarui Li , Vivek Thampy , Berit H. Goodge , David A. Muller
show 3 more authors
Srinivas Raghu Yijun Yu Harold Y. Hwang
This is my paper
classification cond-mat.supr-concond-mat.mtrl-sci
keywords superconductivitycompressivelyfilmsnormal-statestrainedthintransportabove
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

The discovery of superconductivity under high pressure in Ruddlesden-Popper phases of bulk nickelates has sparked great interest in stabilizing ambient pressure superconductivity in thin-film form using epitaxial strain. Recently, signs of superconductivity have been observed in compressively strained bilayer nickelate thin films with an onset temperature exceeding 40 K, albeit with broad and two-step-like transitions. Here, we report intrinsic superconductivity and normal-state transport properties in compressively strained La$_2$PrNi$_2$O$_7$ thin films, achieved through a combination of isovalent Pr substitution, growth optimization, and precision ozone annealing. The superconducting onset occurs above 48 K, with zero resistance reached above 30 K, and the critical current density at 1.4 K is 100-fold larger than previous reports. The normal-state resistivity exhibits quadratic temperature dependence indicative of Fermi liquid behaviour, and other phenomenological similarities to transport in overdoped cuprates suggest parallels in their emergent properties.

Discussion (0). Sign in to comment.

Forward citations

Cited by 5 Pith papers

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

  1. Triplon-mediated pairing and the superconducting gap structure in bilayer nickelates

    cond-mat.str-el 2026-02 conditional novelty 6.0 of 10

    Interlayer singlet-triplet excitations (triplons) mediate an interband s± superconducting pairing that explains the larger α-band gap and its anisotropy in bilayer nickelates.

  2. Pairing symmetry and superconductivity in La$_3$Ni$_2$O$_7$ thin films

    cond-mat.supr-con 2025-06 conditional novelty 6.0 of 10

    RMFT on the bilayer two-orbital t-J model predicts s±-wave pairing in La3Ni2O7 thin films, with a nodeless beta pocket and Tc near 60 K, plus an inter-orbital d-wave channel that reinforces the dominant pairing.

  3. Suppression of Intertwined Density Waves in La$_4$Ni$_{3-x}$Cu$_x$O$_{10+\delta}$

    cond-mat.str-el 2025-07 accept novelty 5.0 of 10

    Copper substitution linearly suppresses the density wave transition in La4Ni3O10 and releases mobile holes, but does not by itself induce superconductivity.

  4. Magnetic configurations and excitations in high-$T_{c}$ multilayer nickelates

    cond-mat.supr-con 2026-06 unverdicted novelty 4.0 of 10

    Multi-orbital Hartree-Fock calculations identify single-stripe magnetic order in bilayers and mirror-odd SDW in trilayers as consistent with experimental magnetic excitations in multilayer nickelates.

  5. Recent progress in nickelate superconductors

    cond-mat.supr-con 2025-09 conditional novelty 2.0 of 10

    A comprehensive review of nickelate superconductors that surveys the 112, 327, and 43(10) families and frames the key open questions about their pairing mechanisms.

Pith tools