|
This article is cited in 1 scientific paper (total in 1 paper)
XVII International Theophilov Symposium, Yekaterinburg, September 23-28, 2018
Optical properties
Exchange and exchange-relativistic effects in the excited states of 3$d$ ions in crystals
A. S. Moskvin Ural Federal University named after the First President of Russia B. N. Yeltsin, Yekaterinburg, Russia
Abstract:
The use of the simplest Heisenberg or Dzyaloshinskii–Moriya-type spin Hamiltonians traditional for the ground orbital nondegenerate states does not allow the features of the exchange and exchange-relativistic couplings for the excited states of 3$d$ and 4$f$ ions in crystals to be correctly described. We have considered a generalized Hamiltonian of the exchange and superexchange couplings, which makes it possible to take into account the effects of orbital (quasi)degeneracy and the exchange mechanism of excitation transfer using a single approach. A new mechanism of the spin–other orbit exchange-relativistic couplings is discussed, in particular, the spin–orbital analog of the Dzyaloshinskii–Moriya interaction and its manifestation in the circular magnetooptics of weak ferromagnets.
Citation:
A. S. Moskvin, “Exchange and exchange-relativistic effects in the excited states of 3$d$ ions in crystals”, Fizika Tverdogo Tela, 61:5 (2019), 980–986; Phys. Solid State, 61:5 (2019), 887–893
Linking options:
https://www.mathnet.ru/eng/ftt8837 https://www.mathnet.ru/eng/ftt/v61/i5/p980
|
Statistics & downloads: |
Abstract page: | 31 | Full-text PDF : | 16 |
|