Physics – Condensed Matter – Superconductivity
Scientific paper
2009-12-03
Phys. Rev. B 82, 094515 (2010)
Physics
Condensed Matter
Superconductivity
An expanded version, accepted in Phys. Rev. B,
Scientific paper
10.1103/PhysRevB.82.094515
Quantum oscillations in hole doped high temperature superconductors are difficult to understand within the prevailing views. An emerging idea is that of a putative normal ground state, which appears to be a Fermi liquid with a reconstructed Fermi surface. The oscillations are due to formation of Landau levels. Recently the same oscillations were found in the electron doped cuprate, $\mathrm{Nd_{2-x}Ce_{x}CuO_{4}}$, in the optimal to overdoped regime. Although these electron doped non-stoichiometric materials are naturally more disordered, they strikingly complement the hole doped cuprates. Here we provide an explanation of these observations from the perspective of density waves using a powerful transfer matrix method to compute the conductance as a function of the magnetic field.
Chakravarty Sudip
Eun Jonghyoun
Jia Xun
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