Symmetry breaking and (pseudo)spin polarization in Veselago lenses for massless Dirac fermions
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Chiral symmetry breaking and violation of the Wiedemann-Franz law in underdoped cuprates
We propose that the recently observed violation of theWiedemannFranz law in the normal state of underdoped cuprates is caused by spin-charge separation and dynamical chiral symmetry breaking in a (2+1)-dimensional system consisting of massless Dirac fermions, charged bosons and a gauge field. While the d-wave spinon gap vanishes at the Fermi points, the nodal fermions acquire a finite mass due ...
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We propose that the recently observed violation of theWiedemannFranz law in the normal state of underdoped cuprates is caused by spin-charge separation and dynamical chiral symmetry breaking, within a (2+1)-dimensional effective model with massless Dirac fermions, bosons and a U(1) gauge field. While the spinon gap vanishes at the Fermi points, at low temperatures no mobile fermionic excitation...
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