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Quantum Oscillations from the Reconstructed Fermi Surface in Electron-Doped Cuprate Superconductors



J. S. Higgins, M. K. Chan, Tarapada Sarkar, R. McDonald, R. L. Greene, Nicholas Butch


We have studied the electronic structure of electron-doped cuprate superconductors via measurements of high-field Shubnikov-de Haas oscillations in thin films. In optimally doped and overdoped Pr2-xCexCuO4±δ and Lad2-x^CexCuO4±δ, quantum oscillations indicate the presence of a small Fermi surface, demonstrating that electronic reconstruction is a general feature of the electron-doped cuprates, despite the location of the superconducting dome at very different doping levels. Negative high-field magnetoresistance is correlated with an anomalous low-temperature change in scattering that modifies the amplitude of quantum oscillations. This behavior is consistent with effects attributed to magnetic fluctuations.
New Journal of Physics


cuprate, superconductivity, quantum oscillations


Higgins, J. , Chan, M. , Sarkar, T. , McDonald, R. , Greene, R. and Butch, N. (2018), Quantum Oscillations from the Reconstructed Fermi Surface in Electron-Doped Cuprate Superconductors, New Journal of Physics, [online], (Accessed May 29, 2024)


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Created April 11, 2018, Updated October 12, 2021