论文标题
磁含量洛杉矶的制造（fe，si）$ _ {13} $厚膜
Fabrication of magnetocaloric La(Fe,Si)$_{13}$ thick films
论文作者
论文摘要
La（Fe，Si）$ _ {13} $ - 基于磁性制冷应用的磁联材料非常有前途。许多研究都集中在这种物质家族上，但仅以批量形式进行。在本文中，我们报告了la（fe，si）$ _ {13} $的厚实薄膜的制造，无论是在有没有后的潮汐。这些膜表现出与散装材料相当的磁性和结构特性。我们还观察到，铁磁相转变具有阴性的热滞后，这种现象以前在该材料中未发现，而是其起源于应变能量储层的可用性，例如在其他阴性热滞后的情况下，已经发现了菌株能量。在这里，底物似乎可以用来存储应变能。我们的探索性研究表明，LA（Fe，Si）$ _ {13} $相位的厚膜的生存能力，并激发了该地区的进一步工作，同时表明可以通过降低磁磁材料的磁性材料的维度来获得其他透视，其中磁量量效应很大。
La(Fe,Si)$_{13}$-based compounds are considered to be very promising magnetocaloric materials for magnetic refrigeration applications. Many studies have focused on this material family but only in bulk form. In this paper, we report the fabrication of thick films of La(Fe,Si)$_{13}$, both with and without post-hydriding. These films exhibit magnetic and structural properties comparable to those of bulk materials. We also observe that the ferromagnetic phase transition has a negative thermal hysteresis, a phenomenon not previously found in this material but which may have its origins in the availability of a strain energy reservoir, as in the cases of other materials in which negative thermal hysteresis has been found. Here, it appears that the substrate acts to store strain energy. Our exploratory study demonstrates the viability of thick films of the La(Fe,Si)$_{13}$ phase and motivates further work in the area, while showing that additional perspectives can be gained from reducing the dimensionality of magnetocaloric materials in which the magneto-volume effect is large.
