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arXiv · 1905.09534

Physical properties of (Mn 0.85 Fe 0.15) Si along the critical trajectory

A. E. Petrova·Dirk Menzel·S. M. Stishov
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Abstract

We report results of studying the magnetization, specific heat and thermal expansion of a single crystal with nominal composition Mn 0.85 Fe 0.15 Si . We found no thermodynamic evidences in favor a second order phase transition in the 15 % Fe substituted MnSi. The trajectory corresponding to the present composition of (MnFe)Si is a critical one, i.e. approaching quantum critical point at lowering temperature, but some properties may feel the cloud of helical fluctuations bordering the phase transition line.

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A. E. Petrova, Dirk Menzel, S. M. Stishov. 2019-05-23. Physical properties of (Mn 0.85 Fe 0.15) Si along the critical trajectory. https://doi.org/10.1103/physrevb.100.094403

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