65 citations · 201 across the 13 of their papers we have counts for
13 papers
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.…
Interferometry reveals spin-singlet fractional quantum Hall edges in graphene
R. Ayache, K. Kim, M. Kuiri +7
The edge modes of spin-singlet fractional quantum Hall (FQH) phases are manifestations of multicomponent topological order and SU(2) spin symmetry. An archetype is the spin-unpolar…
Magnons reveal topology and dynamics of a skyrmion crystal
Raphael Ayache, Nilotpal Chakraborty, Manabendra Kuiri +11
Although individual skyrmions are topologically protected objects, their cooperative crystalline order is fragile, easily disrupted by thermal fluctuations or other external pertur…
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…
Spontaneous time-reversal symmetry breaking in twisted double bilayer graphene
Manabendra Kuiri, Christopher Coleman, Zhenxiang Gao +6
Twisted double bilayer graphene (tDBG) comprises two Bernal-stacked bilayer graphene sheets with a twist between them. Gate voltages applied to top and back gates of a tDBG device…
Thickness dependent transition from the 1T to Weyl semimetal phase in ultrathin MoTe: Electrical transport, Noise and Raman studies
Manabendra Kuiri, Subhadip Das, D. V. S. Muthu +2
Bulk 1T-MoTe shows a structural phase transition from 1T to Weyl semimetallic (WSM) phase at 240 K. This phase transition and transport prope…
Enhanced electron-phonon coupling in doubly aligned hexagonal boron nitride bilayer graphene heterostructure
Manabendra Kuiri, Saurabh Kumar Srivastav, Sujay Ray +4
The relative twist angle in heterostructures of two-dimensional (2D) materials with similar lattice constants result in a dramatic alteration of the electronic properties. Here, we…
Energetics of complex phase diagram in a tunable bilayer graphene probed by quantum capacitance
Manabendra Kuiri, Anindya Das
Bilayer graphene provides a unique platform to explore the rich physics in quantum Hall effect. The unusual combination of spin, valley and orbital degeneracy leads to interesting…
Large Landau level splitting with tunable one-dimensional graphene superlattice probed by magneto capacitance measurements
Manabendra Kuiri, Gaurav Kumar Gupta, Yuval Ronen +2
The unique zero energy Landau Level of graphene has a particle-hole symmetry in the bulk, which is lifted at the boundary leading to a splitting into two chiral edge modes. It has…
Equilibration of quantum hall edge states and its conductance fluctuations in graphene p-n junctions
Chandan Kumar, Manabendra Kuiri, Anindya Das
We report an observation of conductance fuctuations (CFs) in the bipolar regime of quantum hall (QH) plateaus in graphene (p-n-p/n-p-n) devices. The CFs in the bipolar regime are s…
Electron-Hole Asymmetry in the Electron-phonon Coupling in Top-gated Phosphorene Transistor
Biswanath Chakraborty, Satyendra Nath Gupta, Anjali Singh +6
Using in-situ Raman scattering from phosphorene channel in an electrochemically top-gated field effect transistor, we show that its phonons with A symmetry depend much more str…
Probing 2D Black Phosphorus by Quantum Capacitance Measurements
Manabendra Kuiri, Chandan Kumar, Biswanath Chakraborty +5
Two-dimensional materials and their heterostructures have emerged as a new class of materials for not only fundamental physics but also for electronic and optoelectronic applicatio…