Abstract:We have investigated the effect of Ge-substitution to the magnetic ordering in the B20 itinerant chiral magnet MnSi prepared by melting and annealing under ambient pressure. From metallurgical survey, the solubility limit of Ge was found to be x = 0.144(5) with annealing temperature Tan = 1073 K. Magnetization measurements on MnSi1−xGex samples show that the helical ordering temperature Tc increases rapidly in the low-x range, whereas it becomes saturated at higher concentration x > 0.1. The Ge substitution al… Show more
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