Striction of antiferromagnetic transition and magnetic Gruneisen parameter of α-Mn
Nasil'ev A. N. , Buchel'nikov V. D. , Georgius R. Sh. , Ilyushin A. S. , Savchenko Yu. I.
The temperature dependence of the efficiency of the electromagnetic excitation of elastic waves and that of the velocities of transverse and longitudinal sound in polycrystalline α-Mn have been studied. The spontaneous striction of the antiferromagnetic transition (the magnetic volume) has been determined: W^z 8X10". The magnetic Griineisen parameter in the antiferromagnetic phase has also been determined: TM = — 47.
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![](/ps/1158/article_17523_800_head.png "The temperature dependence of the efficiency of the electromagnetic excitation of elastic waves and that of the velocities of transverse and longitudinal sound in polycrystalline α-Mn have been studied. The spontaneous striction of the antiferromagnetic transition (the magnetic volume) has been determined: <i>W^z </i>8X10". The magnetic Griineisen parameter in the antiferromagnetic phase has also been determined: <i>T<sub>M</sub> </i>= — 47.")