Simulations of equilibrium magnetic and magnetoelastic properties of non-conducting rare-earth compounds
Abstract
The Hamiltonian of the magnetic subsystem containing rare-earth ions involves energies of the localized 4f-electrons in free ions, energies of interactions of the 4f-electrons with the static crystal field in the perfect crystal lattice as well as in the homogeneously deformed lattice, interactions with the external magnetic field and lattice vibrations (electron-phonon interaction), magnetic dipolar and exchange interactions between the ions. This Hamiltonian is used in calculations of different measurable physical parameters versus temperature and the magnetic field strength and direction (energy levels of rare earth ions, the magnetization, magnetic dc- and ac-susceptibilities, elastic constants, lattice deformations).
Keywords
crystalline electric field parameters,
magnetostriction,
magnetoelastic interaction,
electron-phonon interaction
Supporting agencies: This work was performed according to the Russian Government Program of Competitive Growth of Kazan federal university and partially supported by RFBR grant №15-02-06990_а.
About the Authors
D. S. Nuzhina
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
I. V. Romanova
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
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Review
For citations:
Nuzhina D.S., Romanova I.V. Simulations of equilibrium magnetic and magnetoelastic properties of non-conducting rare-earth compounds. Magnetic Resonance in Solids. 2016;18(2):16205 (10 pp.).
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