84 citations · 189 across the 12 of their papers we have counts for
14 papers
Incipient superconductivity and tunable Chern insulators in twisted bilayer-trilayer graphene
Derek Waleffe, Aryana Bhattacharyya, Manish Kumar +7
Moiré superlattices assembled by twisting Bernal and rhombohedral multilayer graphene host a rich set of interaction-driven magnetic and topological states, yet superconductivity h…
Metastable magnetic domains and the anomalous resistance peak in twisted double bilayer graphene
Zhenxiang Gao, Christopher Coleman, Silvia Lüscher +7
In graphene moirés, valley polarization gives rise to orbital magnetism, manifested as an anomalous Hall effect and resulting in Barkhausen jumps in longitudinal resistance when ch…
Signatures of a ferro-Josephson effect in twisted graphene
Ruiheng Su, Zhenxiang Gao, Christopher Coleman +9
When a spin-polarized current is driven across a magnetic domain wall, the resulting spin-transfer torque may, beyond a critical threshold, set the wall's moments into precession.…
Anomalous metal and superconducting phases in rhombohedral graphene
Anna Okounkova, Abigail Sohm, Tobias Faehndrich +7
Two-dimensional superconductivity is now well established in graphene-based systems, with many such realizations showing evidence for unconventional pairing. Yet in several of the…
Pervasive spin-triplet superconductivity in rhombohedral graphene
Manish Kumar, Derek Waleffe, Anna Okounkova +6
Magnetic fields typically suppress superconductivity once the Zeeman energy exceeds the pairing gap, unless mechanisms such as unconventional pairing, strong spin-orbit coupling, o…
Superconductivity from dual-surface carriers in rhombohedral graphene
Manish Kumar, Derek Waleffe, Anna Okounkova +7
Intrinsic rhombohedral graphene hosts an unusual low-energy electronic wavefunction, predominantly localized at its outer crystal faces with negligible presence in the bulk. Increa…
Single-gate tracking behavior in flat-band multilayer graphene devices
Kryštof Kolář, Dacen Waters, Joshua Folk +2
A central feature of many van der Waals (vdW) materials is the ability to precisely control their charge doping, , and electric displacement field, , using top and bottom gat…
Interplay of electronic crystals with integer and fractional Chern insulators in moiré pentalayer graphene
Dacen Waters, Anna Okounkova, Ruiheng Su +8
The rapid development of moiré quantum matter has recently led to the remarkable discovery of the fractional quantum anomalous Hall effect, and sparked predictions of other novel c…
Topological electronic crystals in twisted bilayer-trilayer graphene
Ruiheng Su, Dacen Waters, Boran Zhou +5
In a dilute two-dimensional electron gas, Coulomb interactions can stabilize the formation of a Wigner crystal. Although Wigner crystals are topologically trivial, it has been pred…
Topological flat bands in a family of multilayer graphene moiré lattices
Dacen Waters, Ruiheng Su, Ellis Thompson +10
Moiré materials host a wealth of intertwined correlated and topological states of matter, all arising from flat electronic bands with nontrivial quantum geometry. A prominent examp…
Spin-orbit anisotropy measured using ballistic spin resonance
W. W. Yu, S. M. Frolov, S. Luescher +2
Spin relaxation can be greatly enhanced in narrow channels of two-dimensional electron gas due to ballistic spin resonance, which is mediated by spin-orbit interaction for trajecto…
Zero-bias Anomaly of Quantum Point Contacts in the Low-Conductance Limit
Y. Ren, W. W. Yu, S. M. Frolov +2
Most quantum point contacts (QPCs) fabricated in high-mobility 2D electron gases show a zero-bias conductance peak near pinchoff, but the origin of this peak remains a mystery. Pre…
Nuclear Polarization in Quantum Point Contacts in an In-Plane Magnetic Field
Y. Ren, W. Yu, S. M. Frolov +2
Nuclear spin polarization is typically generated in GaAs quantum point contacts (QPCs) when an out-of-plane magnetic field gives rise to spin-polarized quantum Hall edge states, an…
Ballistic Spin Resonance
S. M. Frolov, S. Luscher, W. Yu +3
The phenomenon of spin resonance has had far reaching influence since its discovery nearly 70 years ago. Electron spin resonance (ESR) driven by high frequency magnetic fields has…