Enhancement of paramagnetic effects during spin alignment in 2D semiconductors |
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| Authors: | F E Orlenko G G Zegrya E V Orlenko |
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| Institution: | 1.Ioffe Physicotechnical Institute,Russian Academy of Sciences,St. Petersburg,Russia;2.St. Petersburg State Polytechnic University,St. Petersburg,Russia |
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| Abstract: | Effects of magnetic ordering associated with the Coulomb exchange interaction of free electrons in a 2D Fermi system are considered.
It is shown that the paramagnetic response is substantially enhanced by Fermi-liquid effects. The phase transition to a state
with spontaneous polarization of spins can be observed when Heisenberg parameter J is not smaller than μF/3.06 (approximately one-third of the Fermi energy) and not larger than half the Fermi energy (J ≤ μF/2). |
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