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Open research questions in Physics of Superconductivity and Magnetism

63 unresolved questions extracted from the limitations and future-work sections of 326 Physics of Superconductivity and Magnetism papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • The sample size is limited, with typical dimensions of 4×4×0.3 mm^3. The measurement configuration may be affected by unintentional sample misalignment with respect to H. The study only explores the field-induced phase transitions in Na3Ni2BiO6, and does not consider other frustrated magnets.

    Cascade of magnetic-field-induced quantum spin states in a spin-1 honeycomb magnet · 2026 · DOI

  • The mechanism behind the enhanced superconductivity in hole-doped SmNiO2 is not well understood. The electronic structure and magnetic interactions in the new system need to be elucidated.

    Persistent paramagnons in high-temperature infinite-layer nickelate superconductors · 2026 · DOI

  • The simulations were run for unusually long times compared to typical MD studies. The structures at 700 and 750 K still exhibited incomplete convergence. The potential is limited to the description of the orthorhombic to tetragonal transition.

    The diffusion-driven orthorhombic to tetragonal transition in YBa2Cu3O7 derived with a machine learning interatomic potential · 2026 · DOI

  • Further development of the ACE potential to describe other phases of YBCO. Exploration of the potential's ability to describe the behavior of YBCO in various operating conditions. Application of the potential to optimize the performance of YBCO-based superconducting magnets.

    The diffusion-driven orthorhombic to tetragonal transition in YBa2Cu3O7 derived with a machine learning interatomic potential · 2026 · DOI

  • The pursuit of optimizing 'Liquid Flow' in superconductors. The need for extreme conditions or energy consumption in conventional superconductivity. The limitation of conventional systems that consume energy.

    The End of Liquid Physics: Room-Temperature Zero-Current Rectification Beyond Superconductivity · 2026 · DOI

  • The complexity of the phase diagram introduced by the involvement of Dirac bands. The difficulty in disentangling the transport behaviors for the two types of bands. The need to understand the quantum metric contributions to superconductivity.

    Electric field tunable coupling strength and quantum metric hot spots in a moiré flatband superconductor · 2026 · DOI

  • Future research should focus on experimental confirmation of the predicted critical fields. The development of more accurate machine learning models for predicting critical fields is necessary.

    Towards the discovery of high critical magnetic field superconductors · 2026 · DOI

  • The critical magnetic field has been overlooked in previous research on superconductor discovery. There is a need for a consistent computational database of critical fields for superconductors.

    Towards the discovery of high critical magnetic field superconductors · 2026 · DOI

  • Distinguishing between s++ and s+- pairing symmetries is challenging. Understanding the symmetry of the superconducting order parameter is essential but difficult. Experimental verification of the proposed method is needed.

    Temperature-bias noise and quantum shot noise as probes of pairing symmetry in iron pnictides · 2026 · DOI

  • Experimental verification of the proposed method is needed. The application of the method to other superconducting materials should be explored. Further theoretical work is required to understand the underlying mechanisms.

    Temperature-bias noise and quantum shot noise as probes of pairing symmetry in iron pnictides · 2026 · DOI

  • The study is limited to a specific type of molecular-scale junction. The temperature range is limited to 2.4 K. The study does not explore the effects of thermal phase fluctuations.

    Yu-Shiba-Rusinov-assisted Andreev transport in a molecular junction between superconductors · 2026 · DOI

  • Future studies could explore the effects of thermal phase fluctuations on the transport properties of molecular-scale junctions. They could investigate the potential applications of Yu-Shiba-Rusinov-assisted Andreev transport in superconducting devices. The development of novel theoretical models to describe these phenomena could be an area of future research.

    Yu-Shiba-Rusinov-assisted Andreev transport in a molecular junction between superconductors · 2026 · DOI

  • To perform the experiment with existing Majorana nanowire experimental setups and current noise spectroscopy at ∼THz frequencies. To generalize the result to (3+1)D. To explore the implications for topological quantum computing (TQC).

    Majorana Zitterbewegung Current Correlator: Vanishing ZBW Signal as a Topological Order Parameter · 2026 · DOI

  • The gap is that single-particle ZBW is identical for Dirac and Majorana fermions, but the physical distinction lies in the current-current correlator. The gap is that the field-theoretic foundation for the ZBW-Majorana-TQC chain is lacking.

    Majorana Zitterbewegung Current Correlator: Vanishing ZBW Signal as a Topological Order Parameter · 2026 · DOI

  • The occurrence of multiple phases inside the 1/3 magnetization plateau is not well understood. The nature of the field-induced phase transitions in Na3Ni2BiO6 is not fully explored. The study of frustrated magnets is limited by the lack of experimental techniques to probe field-induced phase transitions.

    Cascade of magnetic-field-induced quantum spin states in a spin-1 honeycomb magnet · 2026 · DOI

  • The relationship between microscopic parameters and paramagnon dynamics is not well understood. Prior work has not fully elucidated the relationship between high-Tc superconductivity and paramagnon dynamics.

    Fermiology, Charge Transfer Energy, and Robust Paramagnons in High-\(T_\mathrm {c}\) Cuprate Superconductors · 2026 · DOI

  • The relationship between the 2D phase-slip physics described here and the extensive barrier scaling ∆FOV ∼ (w/ξ)∆F 2D from alternative approaches remains unresolved.

    Thermal phase slips in superconducting films · 2026 · DOI

  • The numerical variational scheme cannot identify a saddle-point solution below I1 ≈ 0.915 Ic, creating a gap in understanding the instanton behavior at lower currents.

    Thermal phase slips in superconducting films · 2026 · DOI

  • Future research should investigate the effect of phonon engineering on superconductivity in different metallic systems. Future research should aim to understand the underlying mechanisms of the new superconducting phase transition.

    Evidence for room temperature superconductivity associated with a first-order phase transition · 2026 · DOI

  • The gap in current research is the understanding of the relationship between phonon engineering and superconductivity in metallic systems. The gap is the lack of understanding of the effect of phonon engineering on the superconducting properties of metallic materials.

    Evidence for room temperature superconductivity associated with a first-order phase transition · 2026 · DOI

  • S11(a) and (b), the transient response un- der high-fluence excitation below Tc may include a contri- bution from the PG component; therefore, the robustness of the evaluation of F SC th needs to be examined.

    Possible Spatial Correlation between Superconducting and Pseudogap Dynamics in a Bi-based Cuprate · 2026 · DOI

  • The paper suggests future research directions in sub-threshold electronics and nuclear lubrication. The paper suggests the possibility of achieving ballistic transport at room temperature.

    Viscous Electrodynamics and the Rheological Nature of Superconductivity: From Momentum Dissipation to the Shlyapik Phase Transition · 2026 · DOI

  • The paper identifies a gap in the understanding of superconductivity and its applications. The paper suggests that current measurements detect an effective mass influenced by local manifold fluctuations.

    Viscous Electrodynamics and the Rheological Nature of Superconductivity: From Momentum Dissipation to the Shlyapik Phase Transition · 2026 · DOI

  • The current research on superconductors is limited by the pursuit of optimizing 'Liquid Flow'. There is a need for a new energy paradigm that can extract and rectify energy by reordering spatial lattice structures.

    The End of Liquid Physics: Room-Temperature Zero-Current Rectification Beyond Superconductivity · 2026 · DOI

  • The spherical-band approximation is used, which separates the radial and angular dependencies on the wavevector. The method is validated against results from an FLAPW code, but the comparison is limited to a few materials.

    Rigid muffin-tin approximation in plane-wave codes for fast modeling of phonon-mediated superconductors · 2026 · DOI

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63 open questions have been extracted from the limitations and future-work passages of 326 Physics of Superconductivity and Magnetism papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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