The study of crystal and magnetic properties of MnNi0.85Fe0.15Ge
Budzyński Mieczysław,
Valkov Viktor I.,
Golovchan Alexei V.,
Mitsiuk Viktor I.,
Sivachenko Alexandr P.,
Surowiec Zbigniew,
Tkachenka Tamara M.
Affiliations
Budzyński Mieczysław
Institute of Physics, M. Curie-Skłodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
Valkov Viktor I.
Donetsk Institute for Physics and Engineering, 72 R. Luxemburg Str., 83114 Donetsk, Ukraine
Golovchan Alexei V.
Donetsk Institute for Physics and Engineering, 72 R. Luxemburg Str., 83114 Donetsk, Ukraine
Mitsiuk Viktor I.
Scientific-Practical Materials Research Center of National Academy of Sciences of Belarus, 19 P. Brovky Str., 220072 Minsk, Belarus, Tel.: +375 17 284 1301, Fax: +375 17 284 1558
Sivachenko Alexandr P.
Donetsk Institute for Physics and Engineering, 72 R. Luxemburg Str., 83114 Donetsk, Ukraine
Surowiec Zbigniew
Institute of Physics, M. Curie-Skłodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
Tkachenka Tamara M.
Scientific-Practical Materials Research Center of National Academy of Sciences of Belarus, 19 P. Brovky Str., 220072 Minsk, Belarus, Tel.: +375 17 284 1301, Fax: +375 17 284 1558
Magnetic and Mössbauer measurements were performed for MnNi0.85Fe0.15Ge. The Mössbauer data indicate that Fe atoms in MnNi0.85Fe0.15Ge are randomly distributed over two types of metal sites in hexagonal structure. At 77 K, the hyperfine magnetic fields at Fe located in different crystal sites have similar values of about 12.7 and 12.3 T. The random site distribution of the iron atoms in the non-magnetic hexagonal phase at high temperatures is confirmed by the theoretical calculations in fully relativistic Korringa –Kohn –Rostoker (KKR) method.
