Fluxon cotunneling in coupled Josephson junctions: Perturbation theoryWe investigate the effects of fluxon cotunneling and quantum Coulomb drag in a system of two small Josephson junctions coupled by means of mutual capacitance Cm. Depending on the value of Cm we…Andrew G. Semenov, Alex Latyshev, Andrei D. Zaikin·May 10, 2025SaveLearn
Protected Symmetrical Superconducting Qubit Based on Quantum Flux ParametronConventional Quantum Flux Parametrons (QFPs) have historically been used for storing classical bits in Josephson junction-based computers. In this work, we propose a novel QFP-based topology dubbed…Kian Rafati Sajedi, Mojtaba Hosseinpour Choubi, Mehdi Fardmanesh·May 10, 2025SaveLearn
Visualization of defect-induced interband proximity effect at the nanoscaleThe vast majority of superconductors have more than one Fermi surface, on which the electrons pair below the critical temperature TC, yet their superconducting behavior can be well described by a…Thomas Gozlinski, Qili Li, Rolf Heid et al.·May 9, 2025SaveLearn
Exploring unconventional superconductivity in PdTe via Point Contact SpectroscopyPalladium Telluride (PdTe), a non-layered intermetallic crystalline compound, has captured attention for its unique superconducting properties and strong spin-orbit coupling. In this work, we…Pritam Das, Sulagna Dutta, Saurav Suman et al.·May 8, 2025SaveLearn
Superconducting susceptibility signal captured in a record wide pressure rangeIn recent years, the resistance signature of the high temperature superconductivity above 250 K in highly compressed hydrides (more than 100 GPa) has garnered significant attention within the…Shu Cai, Jinyu Zhao, Di Peng et al.·May 8, 2025SaveLearn
The spatial correlation of radiation-induced errors in superconducting devices decays over a millimeterWe perform nanosecond-resolution multiplexed readout on six same-chip superconducting microwave resonators. This allows us to pinpoint the impact positions of ionizing radiation on the chip by…Francesco Valenti, Anil Murani, Patrick Paluch et al.·May 8, 2025SaveLearn
Ratchet Hall Effect in Fluctuating SuperconductorsWe propose a superconducting ratchet-induced Hall effect (RHE), characterized by the emergence of a unidirectional, rectified flux of fluctuating Cooper pairs in a two-dimensional thin film exposed…A. V. Parafilo, V. M. Kovalev, I. G. Savenko·May 7, 2025SaveLearn
Complete suppression of flux instabilities in ramped superconducting magnets with synchronous temperature-modulated JcNonlinear multi-field coupling as an intrinsic property of complex physical systems often leads to abrupt and undesired instabilities. For current-ramped high-field Nb3Sn magnets, frequent flux jumps…Cun Xue, Han-Xi Ren, Kai-Wei Cao et al.·May 7, 2025SaveLearn
Crossover of Superconductivity across the antiferromagnetic end point in FeSe 1-xS x under pressureTemperature-pressure (T-P) phase diagrams of FeSe 1-xS x were investigated by the measurements of dc magnetization (M) and electrical resistivity (ρ) under pressure, using…Kiyotaka Miyoshi, Takanobu Nakatani, Yumi Yamamoto et al.·May 7, 2025SaveLearn
Coexistence of superconductivity and topological band in a van der Waals Sn1-xInxBi2Te4 crystalThe realization of topological surface states and superconductivity within a single material platform is a crucial step toward achieving topologically nontrivial superconductivity. This can be…Hoyeon Jeon, Saban Hus, Jewook Park et al.·May 7, 2025SaveLearn
Charged Vortex in SuperconductorWe find the charged spinless vortices in the effective field theory of a Schrödinger type complex scalar field of Cooper pair, a U(1) gauge field of electromagnetism, and a gapless neutral scalar…Yoonbai Kim, SeungJun Jeon, Hanwool Song·May 7, 2025SaveLearn
Scalable Asynchronous Single Flux Quantum Up-Down Counter using Josephson Trapping Lines and α-CellsWe present a scalable, clockless up-down counter architecture implemented using single-flux quantum (SFQ) logic to enable efficient state management in superconductor digital systems. The proposed…Mustafa Altay Karamuftuoglu, Beyza Zeynep Ucpinar, Sasan Razmkhah et al.·May 7, 2025SaveLearn
Large critical current density Josephson π junctions with PdNi barriersWe report large π-state critical current densities, Jc(π), in Nb/Pd89Ni11/Nb Josephson junctions at Pd89Ni11 thicknesses near the first π-state. We observe oscillations in…Arjun Sapkota, Pukar Sedai, Robert M. Klaes et al.·May 6, 2025SaveLearn
Anomalous proximity effect under Andreev and Majorana bound statesWe theoretically study the anomalous proximity effect in a ballistic normal metal/diffusive normal metal/superconductor junction based on Rashba semiconductor nanowire model. The system hosts two…Eslam Ahmed, Yukio Tanaka, Jorge Cayao·May 6, 2025SaveLearn
Effective Field Theory of SuperconductivityA field theory of a Schrödinger type complex scalar field of Cooper pair, a U(1) gauge field of electromagnetism, and a neutral scalar field of gapless acoustic phonon is proposed for…Yoonbai Kim, SeungJun Jeon, Hanwool Song·May 6, 2025SaveLearn
Direct evidence of light-induced phase-fluctuations in cuprates via time-resolved ARPESPhase fluctuations are widely accepted to play a primary role in the quench of the long-range superconducting order in cuprates. However, an experimental probe capable of unambiguously assessing…D. Armanno, F. Goto, J. -M. Parent et al.·May 6, 2025SaveLearn
Proximity Induced Non-collinear Magnetic States in Planar Superconductor/Ferromagnet HybridsThe proximity induced superconducting (S) correlations in ferromagnetic (F) layers of planar S/F hybrids are shown to be responsible for the appearance of a nonlinear interaction between the magnetic…A. A. Kopasov, S. V. Mironov, A. S. Mel'nikov·May 6, 2025SaveLearn
Probing Vortex Dynamics in 2D Superconductors with Scanning Quantum MicroscopeThe visualization of the magnetic responses of a two-dimensional (2D) superconducting material on the nanoscale is a powerful approach to unravel the underlying supercurrent behavior and to…Sreehari Jayaram, Malik Lenger, Dong Zhao et al.·May 5, 2025SaveLearn
Coexistence of Nodal and Nodeless Pairing Symmetry in Superconducting 6R-SnNbSe2Majorana fermions, a fundamental idea to fault-tolerant quantum computing, can emerge in systems where superconductivity coexists with nontrivial band topology. One promising route to realizing such…K. Yadav, M. Lamba, S. Patnaik·May 5, 2025SaveLearn
Theoretical limits of electron and hole doping in single layer graphene from DFT calculationsDensity functional theory calculations suggest a pronounced hole electron doping asymmetry in a single layer graphene. It turns out that a single graphene sheet can sustain doping levels up to 0.1…Dawid Ciszewski, Wojciech Grochala·May 5, 2025SaveLearn
Field Theory of Superconductor and Charged VortexA Lagrangian of a Schrödinger type complex scalar field of Cooper pair, a U(1) gauge field of electromagnetism, and a neutral scalar field of acoustic phonon with constant background charge density…Yoonbai Kim, SeungJun Jeon, Hanwool Song·May 5, 2025SaveLearn
Interfacial superconductivity in Cu/Cu2O and its effect on shielding ambient electric fieldsA model is presented for two-dimensional superconductivity at semiconductor-on-metal interfaces mediated by Coulomb interactions between electronically-active interface charges in the semiconductor…Dale R. Harshman, Anthony T. Fiory·May 5, 2025SaveLearn
Nonvolatile Cryogenic Phase Slip Memory with Single-Shot ReadoutThe demand for cryogenic memory components is driven by the need for ultra-fast, low-power, and highly reliable computing systems. Phase slip-based devices promise to fulfill all these requirements,…Lukas Nulens, Davi A. D. Chaves, Stijn Reniers et al.·May 4, 2025SaveLearn
New quantum state formed by highly concentrated protons in superconducting palladium hydrideHydrogen exhibits quantum phenomena, such as tunneling in materials. According to theory, the quantum properties of hydrogen change significantly in superconductors due to the emergence of an energy…Ryoma Kato, Ten-ichiro Yoshida, Riku Iimori et al.·May 4, 2025SaveLearn
Ferroelectrically Switchable Chirality in Topological SuperconductivityThe interplay between ferroelectricity, magnetism, and superconductivity provides a rich platform for discovering novel quantum phenomena. Here, we develop an effective theory and propose a…Kai-Zhi Bai, Bo Fu, Shun-Qing Shen·May 3, 2025SaveLearn