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Anisotropic magnetocaloric effect in TbNiAl

机译:TbNiAl中的各向异性磁热效应

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摘要

We present study of the anisotropic magnetocaloric effect in TbNiAl crystallizing in the hexagonal ZrNiAl-type structure. TbNiAl orders antiferromagnetically below T_N = 47K and undergoes second magnetic phase transition to another antiferromagnetic structure at T_1 = 23 K. Magnetization and specific heat measurements on single crystal revealed strongly anisotropic magnetocaloric effect. The large effect occurs for field applied along the hexagonal c-axis whereas the entropy change is almost zero for the perpendicular field direction. Plateau-like character of the determined temperature change is observed between T_N and T_1.
机译:我们目前在六方ZrNiAl型结构的TbNiAl结晶中各向异性磁热效应的研究。 TbNiAl在T_N = 47K以下时反铁磁有序,并在T_1 = 23 K时经历第二次磁性相转变为另一种反铁磁结构。单晶的磁化和比热测量显示出强烈的各向异性磁热效应。沿六边形c轴施加的场发生较大影响,而垂直场方向的熵变几乎为零。在T_N和T_1之间观察到所确定温度变化的高原样特征。

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