Dipole representation of half-filled Landau level
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DOI: 10.1103/physrevb.107.155132
Abstract: We introduce a variant of dipole representation for composite fermions in a half-filled Landau level, taking into account the symmetry under exchange of particles and holes. This is implemented by a special constraint on composite… read more here.
Keywords: dipole representation; filled landau; level; landau level ... See more keywords
Thermopower and Nernst measurements in a half-filled lowest Landau level
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DOI: 10.1103/physrevb.97.245425
Abstract: Motivated by recent proposal by Potter et al. [Phys. Rev. X 6, 031026 (2016)] concerning possible thermoelectric signatures of Dirac composite fermions, we perform a systematic experimental study of thermoelectric transport of an ultrahigh-mobility GaAs/AlxGa1-xAs… read more here.
Keywords: half filled; thermopower; thermopower nernst; nernst measurements ... See more keywords
Symmetry Breaking States in the Half-Filled Two-Orbital Hubbard Model with Crystalline Electric Field
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DOI: 10.7566/jpsj.88.024702
Abstract: We investigate the half-filled two-orbital Hubbard model with the crystalline electric field using dynamical mean-field theory combined with the continuous-time quantum Monte Carlo simulations. We systematically study how the interplay of the intra- and interorbital… read more here.
Keywords: field; hubbard model; half filled; hubbard ... See more keywords