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Published on: March 24, 2019
The electronic structure of the high-TC cuprates within the hidden rotating order
M Azzouz1, B W Ramakko, G Presenza-Pitman
1Department of Physics, Laurentian University, Sudbury, ON, Canada. mazzouz@laurentian.ca
Abstract:
The doping dependence of the Fermi surface and energy distribution curves of the high-T(C) cuprate materials La(2 - x)Sr(x)CuO(4) and Bi(2)Sr(2)CaCu(2)O(8 + δ) are analyzed within the rotating antiferromagnetism theory. Using three different quantities; the k-dependent occupation probability, the spectral function, and the chemical potential (energy spectra), the Fermi surface is calculated and compared to experimental data for La(2 - x)Sr(x)CuO(4). The Fermi surface we calculate evolves from hole-like pockets in the underdoped regime to large electron-like contours in the overdoped regime. This is in agreement with recent findings by Sebastian et al for the α-pocket of Y Ba(2)Cu(3)O(6 + x) (2010 Phys. Rev. B 81 214524). In addition, the full width at half maximum of the energy distribution curves is found to behave linearly with their peak position in agreement with experiment for Bi(2)Sr(2)CaCu(2)O(8 + δ). The effect of scattering on both the Fermi surface and energy distribution curves is examined.
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