Magnetic properties of alloys of the system Mn1−<i>x</i>Fe<i>x</i> As in the ground state

The stability of different magnetic structures realized in a system which possesses a considerable magnetic anisotropy in addition to competing exchange interactions is investigated. The stability boundaries of individual phases as well as the metastable domain which originate in alloys of the system Mn1−xFex As are found. The possibility of irreversible induction of magnetic phases under the influence of not only a magnetic field, but also of high pressure, is predicted. Results of the calculations are compared with experimental data obtained for specimens investigated at low temperatures in static magnetic fields of up to 70 koe in the presence of up to 11 kbar pressure.

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