2k citations · 7k across the 37 of their papers we have counts for
40 papers
Pair density modulation from glide symmetry breaking and nematic superconductivity
Michał Papaj, Lingyuan Kong, Stevan Nadj-Perge +1
Pair density modulation is a superconducting state, recently observed in exfoliated iron-based superconductor flakes, in which the superconducting gap oscillates strongly with the…
Resolving Intervalley Gaps and Many-Body Resonances in Moiré Superconductor
Hyunjin Kim, Gautam Rai, Lorenzo Crippa +15
Magic-angle twisted multilayer graphene stands out as a highly tunable class of moiré materials that exhibit strong electronic correlations and robust superconductivity. However, u…
Ephemeral Superconductivity Atop the False Vacuum
Gal Shavit, Stevan Nadj-Perge, Gil Refael
A many body system in the vicinity of a first-order phase transition may get trapped in a local minimum of the free energy landscape. These so-called false-vacuum states may surviv…
Twist-Programmable Superconductivity in Spin-Orbit Coupled Bilayer Graphene
Yiran Zhang, Gal Shavit, Huiyang Ma +8
The relative twist angle between layers of near-lattice-matched van der Waals materials is critical for the emergent correlated phenomena associated with moire flat bands. However,…
Observation of Cooper-pair density modulation state
Lingyuan Kong, Michał Papaj, Hyunjin Kim +8
Superconducting states that break space-group symmetries of the underlying crystal can exhibit nontrivial spatial modulation of the order parameter. Previously, such remarkable sta…
The electrostatic fate of -layer moiré graphene
Kryštof Kolář, Yiran Zhang, Stevan Nadj-Perge +2
Twisted -layer graphene (TNG) moiré structures have recently been shown to exhibit robust superconductivity similar to twisted bilayer graphene (TBG). In particular for an…
Imaging inter-valley coherent order in magic-angle twisted trilayer graphene
Hyunjin Kim, Youngjoon Choi, Étienne Lantagne-Hurtubise +12
Magic-angle twisted trilayer graphene (MATTG) exhibits a range of strongly correlated electronic phases that spontaneously break its underlying symmetries. The microscopic nature o…
Gate-Defined Topological Josephson Junctions in Bernal Bilayer Graphene
Ying-Ming Xie, Étienne Lantagne-Hurtubise, Andrea F. Young +2
Recent experiments on Bernal bilayer graphene (BLG) deposited on monolayer WSe revealed robust, ultra-clean superconductivity coexisting with sizable induced spin-orbit couplin…
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…
Hot Carrier Thermalization and Josephson Inductance Thermometry in a Graphene-based Microwave Circuit
Raj Katti, Harpreet Arora, Olli-Pentti Saira +5
Due to its exceptional electronic and thermal properties, graphene is a key material for bolometry, calorimetry, and photon detection. However, despite graphene's relatively simple…
Andreev reflection spectroscopy in strongly paired superconductors
Cyprian Lewandowski, Étienne Lantagne-Hurtubise, Alex Thomson +2
Motivated by recent experiments on low-carrier-density superconductors, including twisted multilayer graphene, we study signatures of the BCS to BEC evolution in Andreev reflection…
Hierarchy of Symmetry Breaking Correlated Phases in Twisted Bilayer Graphene
Robert Polski, Yiran Zhang, Yang Peng +8
Twisted bilayer graphene (TBG) near the magic twist angle of exhibits a rich phase diagram. However, the interplay between different phases and their dependence on tw…
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…
Unsupervised learning of two-component nematicity from STM data on magic angle bilayer graphene
William Taranto, Samuel Lederer, Youngjoon Choi +4
Moiré materials such as magic angle twisted bilayer graphene (MATBG) exhibit remarkable phenomenology, but present significant challenges for certain experimental methods, particul…
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…
Spectroscopic Signatures of Strong Correlations and Unconventional Superconductivity in Twisted Trilayer Graphene
Hyunjin Kim, Youngjoon Choi, Cyprian Lewandowski +7
Magic-angle twisted trilayer graphene (MATTG) has emerged as a novel moiré material that exhibits both strong electronic correlations and unconventional superconductivity. However,…
Gate-defined wires in twisted bilayer graphene: from electrical detection of inter-valley coherence to internally engineered Majorana modes
Alex Thomson, Ina Sorensen, Stevan Nadj-Perge +1
Twisted bilayer graphene (TBG) realizes a highly tunable, strongly interacting system featuring superconductivity and various correlated insulating states. We establish gate-define…
Interaction-driven Band Flattening and Correlated Phases in Twisted Bilayer Graphene
Youngjoon Choi, Hyunjin Kim, Cyprian Lewandowski +8
Flat electronic bands, characteristic of magic-angle twisted bilayer graphene (TBG), host a wealth of correlated phenomena. Early theoretical considerations suggested that, at the…
Does filling-dependent band renormalization aid pairing in twisted bilayer graphene?
Cyprian Lewandowski, Stevan Nadj-Perge, Debanjan Chowdhury
Magic-angle twisted bilayer graphene exhibits a panoply of many-body phenomena that are intimately tied to the appearance of narrow and well-isolated electronic bands. The microsco…
Spin-orbit-enhanced magnetic surface second-harmonic generation in SrIrO
K. L. Seyler, A. de la Torre, Z. Porter +6
An anomalous optical second-harmonic generation (SHG) signal was previously reported in SrIrO and attributed to a hidden odd-parity bulk magnetic state. Here we investigate…
Tracing out Correlated Chern Insulators in Magic Angle Twisted Bilayer Graphene
Youngjoon Choi, Hyunjin Kim, Yang Peng +9
Magic-angle twisted bilayer graphene (MATBG) exhibits a range of correlated phenomena that originate from strong electron-electron interactions. These interactions make the Fermi s…
Superconductivity without insulating states in twisted bilayer graphene stabilized by monolayer WSe
Harpreet Singh Arora, Robert Polski, Yiran Zhang +11
Magic-angle twisted bilayer graphene (TBG), with rotational misalignment close to 1.1, features isolated flat electronic bands that host a rich phase diagram of correlated…
Imaging Electronic Correlations in Twisted Bilayer Graphene near the Magic Angle
Youngjoon Choi, Jeannette Kemmer, Yang Peng +11
Twisted bilayer graphene with a twist angle of around 1.1° features a pair of isolated flat electronic bands and forms a strongly correlated electronic platform. Here, we use scann…
Decoupling edge versus bulk conductance in the trivial regime of an InAs/GaSb double quantum well using Corbino ring geometry
Binh-Minh Nguyen, Andrey A. Kiselev, Ramsey Noah +13
A Corbino ring geometry is utilized to analyze edge and bulk conductance of InAs/GaSb quantum well structures. We show that edge conductance exists in the trivial regime of this th…