The temperature dependence of the structural anisotropy of weak ferromagnetic LuFeO3 is investigated through the XRD spectra at different temperatures. The structural anisotropy decreases with heating, which is in agreement with the magnetization-temperature measurement. The magnetic hysteresis loops reveal exceptionally high coercivity and saturation field. Its high energy of magnetocrystalline anisotropy may be responsible for the peculiar phenomenon. Thus, LuFeO3 is a super hard magnetic material. The magnetized LuFeO3 can steadily provide weak permanent magnetic field, which can be considered as a kind of useful application.

Related Links:http://apl.aip.org/resource/1/applab/v100/i5/p052407_s1