Spectroscopic evidence of disorder-induced quantum phase transitions in monolayer Fe(Te,Se) superconductor

This study demonstrates that controllably introducing disorder via iron cluster deposition in monolayer Fe(Te,Se) drives a superconductor-insulator transition, revealing a disorder-induced quantum phase transition characterized by the evolution from superconducting to insulating U-shaped gaps attributed to localization-enhanced Cooper pair correlations.

Guanyang He, Ziqiao Wang, Longxin Pan + 5 more2026-03-06🔬 cond-mat.mes-hall

Enhanced superconductivity in palladium hydrides by non-perturbative electron-phonon effects

This paper demonstrates that accurately predicting the anomalous isotope effect and critical temperatures in palladium hydrides requires a non-perturbative framework that consistently treats anharmonic effects in both phonon spectra and electron-phonon interaction vertices, overcoming the limitations of previous methods that either neglected non-linear coupling or relied on flawed perturbative expansions.

Raffaello Bianco, Ion Errea2026-03-05🔬 physics

Signature of high temperature superconductivity with giant pressure effect in networks of boron doped ultra-thin carbon nanotubes

This paper reports the fabrication of boron-doped, ultra-thin carbon nanotube networks within zeolite pores that exhibit characteristic signatures of high-temperature superconductivity with a critical temperature between 220 and 250 K, alongside a giant pressure effect that further elevates this transition temperature.

Yibo Wang, Tsin Hei Koo, Runqing Huang + 9 more2026-03-05🔬 physics

Preparation and optimization of high-temperature superconducting Ruddlesden-Popper nickelate thin films

This study establishes a systematic gigantic-oxidative atomic-layer-by-layer epitaxy approach to grow phase-pure, high-quality Ln3Ni2O7 thin films that exhibit superconductivity with an onset transition temperature of 50 K without post-annealing, while identifying four critical factors—precise cation stoichiometry, complete atomic layer coverage, optimized interface reconstruction, and accurate oxygen content regulation—that govern their crystalline quality and superconducting properties.

Wei Lv, Zihao Nie, Heng Wang + 4 more2026-03-05🔬 physics

Effects of next-nearest neighbor hopping on the pairing and critical temperatures of the attractive Hubbard model on a square lattice

Using sign-problem-free determinant quantum Monte Carlo simulations, this study demonstrates that introducing next-nearest-neighbor hopping in the attractive Hubbard model on a square lattice can significantly enhance the critical temperature by up to 50% while simultaneously reducing the pseudogap region, offering a viable route to achieve experimentally accessible superconducting temperatures.

Rodrigo A. Fontenele, Natanael C. Costa, Thereza Paiva + 1 more2026-03-05🔬 physics

Evidence for Multimodal Superfluidity of Neutrons

This paper presents theoretical and experimental evidence for a new phase of matter called multimodal superfluidity in neutron-rich systems, characterized by the coexistence of s-wave pairs, p-wave entangled double pairs, and quartets, which is predicted to occur in various fermionic systems and has significant implications for the structure and dynamics of neutron star crusts.

Yuan-Zhuo Ma, Georgios Palkanoglou, Joseph Carlson + 7 more2026-03-05🔭 astro-ph

Time-reversal symmetry breaking superconductivity with electronic glass in nickelate (La, Pr, Sm)3Ni2O7 films

This study reports the discovery of an unprecedented time-reversal symmetry breaking superconducting state accompanied by electronic glass dynamics in epitaxially strained (La, Pr, Sm)₃Ni₂O₇ bilayer nickelate films, evidenced by unconventional magnetoresistance hysteresis, zero-field non-reciprocity, and logarithmically slow resistance relaxations.

Haoran Ji, Zheyuan Xie, Yaqi Chen + 11 more2026-03-05🔬 cond-mat.mes-hall

Majorana Flat Bands in the Vortex Line of Superconducting Weyl Semimetals

This paper theoretically demonstrates the emergence of Majorana flat bands in the vortex lines of superconducting time-reversal-symmetry-breaking Weyl semimetals by decomposing the system into kzk_z-resolved Chern insulators, identifying the conditions for their formation, proposing a kzk_z-resolved Z2Z_2 Chern-Simons invariant for their characterization, and confirming their realization via attractive Hubbard interactions.

Zhicheng Zhang, Kou-Han Ma2026-03-05🔬 cond-mat.mes-hall

Nucleation and Arrangement of Abrikosov Vortices in Hybrid Superconductor-Ferromagnetic Nanostructure

This study utilizes time-dependent Ginzburg-Landau simulations to reveal how inhomogeneous magnetic fields from ferromagnetic nanodots drive the nucleation, creep-like deformation, and formation of unique stationary configurations of Abrikosov vortices in hybrid superconductor-ferromagnetic nanostructures, offering critical insights for optimizing nanoscale superconducting systems.

Sara Memarzadeh, Mateusz Gołębiewski, Maciej Krawczyk + 1 more2026-03-05🔬 cond-mat.mes-hall

Fingerprint of TcT_c advancement in Li-doped Bi-2223 superconductors prepared by cationic molecular mixing within Pechini sol-gel synthesis

This study demonstrates that a Pechini sol-gel synthesis method with cationic molecular mixing can efficiently produce high-quality Li-doped Bi-2223 superconductors, achieving a maximum critical temperature of 111.4 K at 5 mol% Li doping while revealing unique layer-by-layer crystalline growth and flux creep mechanisms.

N. K. Man, Huu T. Do, Nguyen V. Tu + 1 more2026-03-04🔬 cond-mat.mtrl-sci

Microscopic Phase-Transition Framework for Gate-Tunable Superconductivity in Monolayer WTe2_2

This paper develops a microscopic framework incorporating Nambu-Goldstone and Berezinskii-Kosterlitz-Thouless fluctuations to explain the anomalous gate-tunable superconductivity in monolayer WTe2_2, successfully reproducing key experimental observations such as the contrasting carrier-density dependence of TcT_c and the sudden disappearance of superconducting fluctuations under strong disorder.

F. Yang, G. D. Zhao, Y. Shi + 1 more2026-03-04🔬 cond-mat.mtrl-sci

Emergent superconducting phases in unconventional pp-wave magnets: Topological superconductivity, Bogoliubov Fermi surfaces and superconducting diode effect

This theoretical study establishes unconventional pp-wave magnets as a versatile platform for realizing a rich landscape of emergent superconducting phases, including topological superconductivity with Majorana edge modes, Bogoliubov Fermi surfaces, and the superconducting diode effect, within a unified microscopic framework.

Amartya Pal, Paramita Dutta, Arijit Saha2026-03-04🔬 cond-mat.mes-hall

Enhancing the Energy Resolution in Scanning Tunneling Microscopy: from dynamical Coulomb blockade to cavity quantum electrodynamics

By integrating local electromagnetic shielding and low-pass filtering directly at the cryogenic scan head, this study overcomes dynamical Coulomb blockade limitations to achieve a record energy resolution of 3.7 μeV, thereby revealing a novel coupling between atomic-scale Josephson currents and macroscopic cavity quantum electrodynamics modes.

Xianzhe Zeng, Janis Siebrecht, Haonan Huang + 4 more2026-03-04🔬 cond-mat.mes-hall