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Spin-freezing processes around the tricritical point in Mn_1−xTi_xSb

Authors:	Takashi Kamimura Masaki Sato Takao Iwata

Institution:	College of General Education, Tohoku University, Kawauchi, Sendai 980, Japan

Abstract:	Transitions related to the spin-glass phase in Mn_1−xTi_xSb are revisited from the nonlinear ac susceptibility. Near the tricritical point (x≈0.8), the transition between ferromagnetic and reentrant spin-glass states is sharp. At x0.8, an anomally is found slightly above the temperature of usual spin-glass freezing.

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