Masahiko Hiroi, Tomohito Nonoyama, Genta Adachi, Iduru Shigeta, Hirotaka Manaka, Norio Terada
Masahiko Hiroi, Tomohito Nonoyama, Genta Adachi, Iduru Shigeta, Hirotaka Manaka, Norio Terada
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广井正彦、野野山智仁、安达元太、重田井、真中广隆、寺田纪夫
DOI：
10.1088/1742-6596/969/1/012098
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Magnetic properties of Heusler compound Fe1.3Mn1.7Si
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文献类型：
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作者：
前田瑞綺;赤羽祐香;山本健登;G. Tan;L.-D. Zhao;M.G. Kanatzidis;有田将司;生天目博文;谷口雅樹;N.L. Saini;溝川貴司;Magnetic properties of Heusler compound Fe1.3Mn1.7Si
比较了两种赫斯勒化合物Fe 1.3 Mn 1.7 Si和Fe 1.4 Mn 1.6 Si的磁性。Fe1.4Mn1.6Si在T C = 117K时发生铁磁相变，在T A = 66K时发生反铁磁相变，这与Fe2MnSi的行为相同.此外，已知对于Fe 3− x Mn x Si，随着x的增加，TC减小，但TA几乎保持不变，并且它们似乎在x = 1.7附近相遇。在不同磁场下对Fe 1.3 Mn 1.7 Si的磁化强度进行了仔细的测量，结果表明Fe 1.3 Mn 1.7 Si在低磁场下有三个转变，例如在0.01 T下，转变温度分别为85 K、67 K和60 K。在60 K的最低过渡的特征在于在磁化强度随着温度的降低和显着的磁场依赖性，在T A，这是相对独立的磁场，x= 1和1.6的过渡相比，一个快速下降。0 K时的临界场为103T。当x≤ 1.6时，没有发现最低温度的相变，认为它与T A处的相变不同。最高温度85 K时的相变为铁磁相变，而67 K时的相变具有T A时的相变特征，且对磁场不敏感。当x≤ 1.6时，它们与T_C和T_A处的跃迁相同.
The magnetic properties of two Heusler compounds Fe 1.3 Mn 1.7 Si and Fe 1.4 Mn 1.6 Si are compared. Fe 1.4 Mn 1.6 Si exhibits a ferromagnetic transition at T C∼ 117 K and another transition to a phase with antiferromagnetic components at T A∼ 66 K, which is the same as the behavior of Fe 2 MnSi. Further, it is known that for Fe 3− x Mn x Si, with increasing x, T C decreases but T A remains almost constant, and they appear to meet around x∼ 1.7. The careful measurements of magnetization at various magnetic fields reveal that Fe 1.3 Mn 1.7 Si has three transitions at low fields; for instance, at 0.01 T, the transition temperatures are found to be 85 K, 67 K, and 60 K. The lowest transition at 60 K is characterized by a rapid decrease in magnetization with decreasing temperature and significant magnetic field dependence, in contrast to the transition at T A, which is relatively independent of the magnetic field, for x= 1 and 1.6. The critical field at 0 K is∼ 3 T. The transition at the lowest temperature was not found for x≤ 1.6, and it is considered a different transition from that at T A. While the transition at the highest temperature 85 K is a ferromagnetic transition, the transition at 67 K has the characteristics of the transition at T A, and it is found to be insensitive to magnetic fields. They are revealed to be the same transitions as those at T C and T A for x≤ 1.6.