De Haas-van Alphen effect in the band antiferromagnet FeGe2: Development of spin splitting

  title={De Haas-van Alphen effect in the band antiferromagnet FeGe2: Development of spin splitting},
  author={G. E. Grechnev and Anastasiya A. Lyogenkaya and V. B. Pluzhnikov and I. V. Svechkarev and Alexey V. Fedorchenko and J. M. Perz},
  journal={Low Temperature Physics},
The de Haas-van Alphen (dHvA) effect in the antiferromagnetic compound FeGe2 is studied experimentally. A sharp suppression of the amplitude of the first harmonic of the dHvA oscillations is observed for a number of orbits on the Fermi surface of FeGe2. The change in the conditions for suppression of the amplitude ("spin zeroes") when FeGe2 is doped with cobalt is determined. A method for analyzing the experimental data is proposed in which the g-factors of the conduction electrons are computed… 
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