55 citations · 230 across the 18 of their papers we have counts for
9 papers · 1 filter
The Virial Theorem in Graphene and other Dirac Materials
J. Dustan Stokes, Hari P. Dahal, Alexander V. Balatsky +1
The virial theorem is applied to graphene and other Dirac Materials for systems close to the Dirac points where the dispersion relation is linear. From this, we find the exact form…
Edge states in a honeycomb lattice: effects of anisotropic hopping and mixed edges
Hari P. Dahal, Zi-Xiang Hu, N. A. Sinitsyn +2
We study the edge states in graphene in the presence of a magnetic field perpendicular to the plane of the lattice. Most of the works done so far discuss the edge states in either…
Incommensurate spin resonance in URu2Si2
A. V. Balatsky, A. Chantis, Hari P. Dahal +2
We focus on inelastic neutron scattering in and argue that observed gap in the fermion spectrum naturally leads to the spin feature observed at energies $ω_{res} = 4-6…
Importance of on-site interaction in graphene
Hari P. Dahal, Jean-Pierre Julien, A. V. Balatsky
We use the Gutzwiller method to investigate the importance of the on-site Coulomb interaction in graphene. We apply it to Hubbard Hamiltonian to study the renormalization of the ki…
Tuning impurity states in bilayer graphene
Hari P. Dahal, A. V. Balatsky, Jian-Xin Zhu
We study the impurity states in bilayer graphene in the unitary limit using Green's function method. Unlike in single layer graphene, the presence of impurities at two non-equivale…
Wigner crystallization in a single and bilayer graphene
Hari P. Dahal, Tim O. Wehling, Kevin S. Bedell +2
We study the possibility of Wigner crystallization in both single- and and bi-layer graphene using a real space tight binding model. In addition to verifying our earlier prediction…
Absence of Wigner Crystallization in Graphene
Hari P Dahal, Yogesh N. Joglekar, Kevin S. Bedell +1
Graphene, a single sheet of graphite, has attracted tremendous attention due to recent experiments which demonstrate that carriers in it are described by massless fermions with lin…
Spin waves in quasi-equilibrium spin systems
Kevin S. Bedell, Hari P. Dahal
Using the Landau Fermi liquid theory we have discovered a new regime for the propagation of spin waves in a quasi-equilibrium spin systems. We have determined the dispersion relati…
Pairing symmetry signatures of T1 in superconducting ferromagnets
Hari P. Dahal, Jason Jackiewicz, Kevin S. Bedell
We study the nuclear relaxation rate 1/T1 as a function of temperature for a superconducting-ferromagnetic coexistent system using a p-wave triplet model for the superconducting pa…