Open AccessMossbauer Study of Yttrium Iron Carnet Epitaxial Films Magnetic Microstructure
Author(s) -
Volodymyr Kotsyubynsky,
V.V. Moklyak,
B. K. Ostafiychuk
Publication year - 2014
Publication title -
journal of vasyl stefanyk precarpathian national university
Language(s) - English
Resource type - Journals
eISSN - 2413-2349
pISSN - 2311-0155
DOI - 10.15330/jpnu.1.1.81-86
Subject(s) - paramagnetism , mössbauer spectroscopy , yttrium , materials science , microstructure , electric field gradient , yttrium iron garnet , ion , quadrupole , condensed matter physics , epitaxy , magnetic moment , nuclear magnetic resonance , crystallography , chemistry , layer (electronics) , nanotechnology , physics , atomic physics , metallurgy , organic chemistry , oxide
The magnetic microstructure of the yttrium iron garnet epitaxial films surface layer were studied by conversion electronic Mossbauer spectroscopy method. The presence of two magnetically non-equvivalent positions of Fe3+ ions in tetrahedral sites of garnet structure and a paramagnetic phase formed by Fe2+ ions were fixed. Using the model of mixed magnetic and quadrupole interaction by the diagonalization of the nuclear Hamiltonian matrix the information about the spatial orientation of the cation sublattices magnetic moments was obtained and the components of electric field gradient tensor at 57Fe nuclei in different crystal non-equvivalent positions were calculated.