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VOLUME 103 (2016) | ISSUE 2 | PAGE 132
Influence of varying magnetic order in external magnetic field on the electronic structure and Fermi surface within the t-J model
We investigate the electronic structure of the two-dimensional t-J model in a transverse external static magnetic field with canted long-range magnetic order using cluster perturbation theory. Distribution of spectral weight in the whole range of fields from zero to ferromagnetic saturation is explored. We demonstrate the possibility of a sharp change in a distribution of spectral weight at the Fermi level associated with the magnetic correlations when varying magnetic field.