152 citations · 985 across the 32 of their papers we have counts for
5 papers · 1 filter
Valley-Selective Landau-Zener Oscillations in Semi-Dirac p-n Junctions
K. Saha, R. Nandkishore, S. A. Parameswaran
We study transport across p-n junctions of gapped two-dimensional semi-Dirac materials: nodal semimetals whose energy bands disperse quadratically and linearly along distinct cryst…
Microscopic Theory of a Quantum Hall Ising Nematic: Domain Walls and Disorder
Akshay Kumar, S. A. Parameswaran, S. L. Sondhi
We study the the interplay between spontaneously broken valley symmetry and spatial disorder in multivalley semiconductors in the quantum Hall regime. In cases where valleys have a…
A Typology for Quantum Hall Liquids
S. A. Parameswaran, S. A. Kivelson, E. H. Rezayi +3
There is a close analogy between the response of a quantum Hall liquid (QHL) to a small change in the electron density and the response of a superconductor to an externally applied…
Nematic Valley Ordering in Quantum Hall Systems
D. A. Abanin, S. A. Parameswaran, S. A. Kivelson +1
The interplay between quantum Hall ordering and spontaneously broken "internal" symmetries in two-dimensional electron systems with spin or pseudospin degrees of freedom gives rise…
Charge 2e skyrmions in bilayer graphene
D. A. Abanin, S. A. Parameswaran, S. L. Sondhi
Quantum Hall states that result from interaction induced lifting of the eight-fold degeneracy of the zeroth Landau level in bilayer graphene are considered. We show that at even fi…