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Ferromagnetic Superconductivity in Two-dimensional Niobium Diselenide
Tingyu Qu, Shangjian Jin, Fuchen Hou +9
The co-existence of ferromagnetism and superconductivity becomes possible through unconventional pairing in the superconducting state. Such materials are exceedingly rare in solid-…
Coupled Ferroelectricity and Superconductivity in Bilayer -MoTe
Apoorv Jindal, Amartyajyoti Saha, Zizhong Li +8
Achieving electrostatic control of quantum phases is at the frontier of condensed matter research. Recent investigations have revealed superconductivity tunable by electrostatic do…
Twisted cuprate van der Waals heterostructures with controlled Josephson coupling
Mickey Martini, Yejin Lee, Tommaso Confalone +10
Twisted van der Waals (vdW) heterostructures offer a unique platform for engineering the efficient Josephson coupling between cuprate thin crystals harboring the nodal superconduct…
Nematicity and Orbital Depairing in Superconducting Bernal Bilayer Graphene with Strong Spin Orbit Coupling
Ludwig Holleis, Caitlin L. Patterson, Yiran Zhang +8
Superconductivity (SC) is a ubiquitous feature of graphite allotropes, having been observed in Bernal bilayers[1], rhombohedral trilayers[2], and a wide variety of angle-misaligned…
Anomalously high supercurrent density in a two-dimensional topological material
Qi Zhang, Md Shafayat Hossain, Brian Casas +24
Ongoing advances in superconductors continue to revolutionize technology thanks to the increasingly versatile and robust availability of lossless supercurrent. In particular high s…
Magnetic-field-free nonreciprocal transport in graphene multi-terminal Josephson junctions
Fan Zhang, Asmaul Smitha Rashid, Mostafa Tanhayi Ahari +6
Nonreciprocal superconducting devices have attracted growing interest in recent years as they potentially enable directional charge transport for applications in superconducting qu…
The study of contact properties in edge-contacted graphene-aluminum Josephson junctions
Zhujun Huang, Neda Lotfizadeh, Bassel H. Elfeky +8
Transparent contact interfaces in superconductor-graphene hybrid systems are critical for realizing superconducting quantum applications. Here, we examine the effect of the edge-co…
Superconductivity in Twisted Double Bilayer Graphene Stabilized by WSe
Ruiheng Su, Manabendra Kuiri, Kenji Watanabe +2
Superconductivity has been previously observed in magic-angle twisted stacks of monolayer graphene but conspicuously not in twisted stacks of bilayer graphene, although both system…
High magnetic field stability in a planar graphene-NbSe SQUID
Ayelet Zalic, Takashi Taniguchi, Kenji Watanabe +2
Thin NbSe retains superconductivity at high in-plane magnetic field up to 30 T. In this work we construct an atomically thin, all van der Waals SQUID, in which current flows be…
Nonreciprocal Charge Transport in Topological Kagome Superconductor CsVSb
Yueshen Wu, Qi Wang, Xiang Zhou +14
Nonreciprocal charge transport phenomena are widely studied in two-dimensional superconductors, which demonstrate unidirectional-anisotropy magnetoresistances as a result of symmet…
Encapsulating high-temperature superconducting twisted van der Waals heterostructures blocks detrimental effects of disorder
Yejin Lee, Mickey Martini, Tommaso Confalone +10
High-temperature cuprate superconductors-based van der Waals (vdW) heterostructures hold high technological promise. One of the obstacles hindering progress is the detrimental effe…
Two-dimensional cuprate nanodetector with single photon sensitivity at T = 20 K
Rafael Luque Merino, Paul Seifert, Jose Duran Retamal +6
Detecting light at the single-photon level is one of the pillars of emergent photonic technologies. This is realized through state-of-the-art superconducting detectors that offer e…
Spin-Orbit Enhanced Superconductivity in Bernal Bilayer Graphene
Yiran Zhang, Robert Polski, Alex Thomson +7
In the presence of a large perpendicular electric field, Bernal-stacked bilayer graphene (BLG) features several broken-symmetry metallic phases as well as magnetic-field-induced su…
Electrical switching of a moiré ferroelectric superconductor
Dahlia R. Klein, Li-Qiao Xia, David MacNeill +3
Electrical control of superconductivity is critical for nanoscale superconducting circuits including cryogenic memory elements, superconducting field-effect transistors (FETs), and…
Van der Waals pi Josephson junctions
Kaifei Kang, Helmuth Berger, Kenji Watanabe +4
Proximity-induced superconductivity in a ferromagnet can induce Cooper pairs with a finite center-of-mass momentum. The resultant spatially modulated superconducting order paramete…
Ascendance of Superconductivity in Magic-Angle Graphene Multilayers
Yiran Zhang, Robert Polski, Cyprian Lewandowski +10
Graphene moire superlattices have emerged as a platform hosting and abundance of correlated insulating, topological, and superconducting phases. While the origins of strong correla…
Evidence for Flat Band Dirac Superconductor Originating from Quantum Geometry
Haidong Tian, Shi Che, Tianyi Xu +7
In a flat band superconductor, the charge carriers' group velocity vF is extremely slow, quenching their kinetic energy. The emergence of superconductivity thus appears paradoxical…
Magic-Angle Multilayer Graphene: A Robust Family of Moiré Superconductors
Jeong Min Park, Yuan Cao, Liqiao Xia +4
The discovery of correlated states and superconductivity in magic-angle twisted bilayer graphene (MATBG) has established moiré quantum matter as a new platform to explore interacti…
Oscillating paramagnetic Meissner effect and Berezinskii-Kosterlitz-Thouless transition in monolayer
S. Y. Wang, Y. Yu, J. X. Hao +12
Monolayers of a prototypical cuprate high transition-temperature () superconductor (Bi2212) was recently found to show and other electronic prope…
Revealing the ultra-sensitive calorimetric properties of supercon-ducting magic-angle twisted bilayer graphene
G. Di Battista, P. Seifert, K. Watanabe +4
The allegedly unconventional superconducting phase of magic-angle twisted bilayer graphene (MATBG)1 has been predicted to possess extraordinary thermal properties, as it is formed…
Supercurrent diode effect and magnetochiral anisotropy in few-layer NbSe
Lorenz Bauriedl, Christian Bäuml, Lorenz Fuchs +9
Nonreciprocal transport refers to charge transfer processes that are sensitive to the bias polarity. Until recently, nonreciprocal transport was studied only in dissipative systems…
Evidence for unconventional superconductivity in twisted bilayer graphene
Myungchul Oh, Kevin P. Nuckolls, Dillon Wong +5
The emergence of superconductivity with doping from correlated insulators in magic-angle twisted bilayer graphene (MATBG) has raised the intriguing possibility that its pairing mec…
Planar graphene-NbSe Josephson junctions in a parallel magnetic field
Tom Dvir, Ayelet Zalic, Eirik Holm Fyhn +5
Thin transition metal dichalcogenides sustain superconductivity at large in-plane magnetic fields due to Ising spin-orbit protection, which locks their spins in an out-of-plane ori…
Giant anisotropic magnetoresistance in Ising superconductor-magnetic insulator tunnel junctions
Kaifei Kang, Shengwei Jiang, Helmuth Berger +5
Superconductivity and magnetism are generally incompatible because of the opposing requirement on electron spin alignment. When combined, they produce a multitude of fascinating ph…