Ordering and magnetic hyperfine fields in Pt<sub>3</sub>Mn<sub>0.9</sub>Fe<sub>0.1</sub> studied by Mossbauer spectroscopy
K Szymanski; L Dobrzynski; E Gerkema; A M van der Kraan; K Szymanski; Phys. Fac., Warsaw Univ. Branch, Bialystok, Poland; L Dobrzynski; Phys. Fac., Warsaw Univ. Branch, Bialystok, Poland; E Gerkema; Phys. Fac., Warsaw Univ. Branch, Bialystok, Poland; A M van der Kraan; Phys. Fac., Warsaw Univ. Branch, Bialystok, Poland
Журнал:
Journal of Physics: Condensed Matter
Дата:
1991-07-22
Аннотация:
The influence of structural defects on the magnetic properties of Pt<sub>3</sub>Mn<sub>0.9</sub>Fe<sub>0.1</sub> are studied by means of Mossbauer spectroscopy. The magnetic hyperfine field distribution shows that the sample exhibits an inhomogeneous magnetization distribution. The cold work introduces a number of antiphase boundaries dividing the sample into subvolumes with the linear dimensions of 30-100 AA. The magnetization of these subvolumes performs a superparamagnetic-like relaxation. The origin of relaxation is discussed.
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