1982 年 51 巻 5 号 p. 1401-1405
Shift of the Curie temperature Tc (\simeq195 K) of Fe2P single crystal has been measured in the presence of uniaxial stress. The stresses up to 80 bar were applied along the directions parallel and perpendicular to the c-axis (c⁄⁄ and c⊥). The Tc’s increased and decreased with increasing stress in the cases of c⁄⁄ and c⊥, respectively and the average values of dTc⁄dp’s were: dTc⁄dp⁄⁄=7.8×10−3 deg/bar and dTc⁄dp⊥=−6.4×10−3 deg/bar. The effect of stress on the exchange interactions between Fe atoms is discussed in connection with the pressure-induced magnetic transition previously found under hydrostatic high pressures.
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