強磁性結合する合金クラスター系の新しい磁性

铁磁耦合合金簇系统中的新磁性

• 批准号: 09450233
• 负责人: INO Hiromitsu
• 金额: $ 2.94万
• 依托单位: Hosei University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09450233/
• 关键词: superparamagnetism; duster; melt-quenching; Pr-Fe; La-Fe; magnetization; Mossbauer effect; Mossbauer effect; クラスター; 超強磁性; 超常磁性; 磁化; ランジュバン関数; 磁気クラスター; 希土類・鉄合金; メルト・クエンチ; Pr-Fe合金; アモルファス合金

We proposed the super-ferromagnetism model to analyze the magnetic behavior of a ferromagnetically coupled ferromagnetic cluster system. In the model the magnetic behavior is characterized by two parameters TィイD3intra(/)cィエD3 and TィイD3intrer(/)cィエD3. TィイD3intra(/)cィエD3 represents the Curie temperature of a cluster, that is, the strength of the interaction of magnetic atoms in the cluster. Whereas, TィイD3intrer(/)cィエD3 represents the Curie temperature of the whole system determined by the strength of the interaction between the ferromagnetic clusters.We determined TィイD3intra(/)cィエD3 and TィイD3intrer(/)cィエD3 together with average cluster size in melt-quenched Pr-Fe alloys, in which magnetic clusters are formed by the concentration fluctuation of the amorphous phase in the alloys.The present model can be applied for the analysis of magnetic behavior of inhomogeneous systems. The concept of super-ferromagnetism is closely related to that of cluster-glass, which is used widely but not defined rigorously. The present model has an advantage to give physically well-defined parameters and hence give clear pictures for the magnetic state.

我们提出了超铁磁模型来分析铁磁耦合铁磁团簇系统的磁性行为。在该模型中，磁性行为由两个参数表征，分别是T′′γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ γ。T ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` `然而,TィイD3intrer (/) cィエD3代表了整个系统的居里温度由铁磁集群之间的相互作用的强度。本文测定了熔体淬火的Pr-Fe合金的磁团簇大小，并对其磁团簇大小和磁团簇大小进行了测定。该模型可用于非均匀体系的磁行为分析。超铁磁性的概念与团簇玻璃的概念密切相关，这是一个广泛使用但没有严格定义的概念。该模型的优点是可以给出物理上定义良好的参数，从而给出磁态的清晰图像。

项目成果

S. Yoshiike, H. Adachi, H. Ichinose, K. Tokumitsu, H. Ino and K. Shiratori: "Structure of Melt-Quenched Pr-Fe Alloys and Analysis of the Magnetization based on Super-Ferromagnetism"Mater. Trans. JIM. 39, NO.1. (1998)

S. Yoshiike、H. Adachi、H. Ichinose、K. Tokumitsu、H. Ino 和 K. Shiratori：“熔融淬火 Pr-Fe 合金的结构和基于超铁磁性的磁化分析”材料。

S.Yoshiike,H.Ino et al.: "Structure of Melt-Quenched Pr Fe Allays and Analysis of Magnetizations..." Mater.Trans JIN. 39・1. 102-109 (1998)

S.Yoshiike、H.Ino 等：“熔融淬火 Pr Fe 合金的结构和磁化强度分析……”Mater.Trans JIN 39・1 (1998)。

M.Matsuura,H.Ino et al.: "Amorphous Fe Clusters Imbedded in fcc La for Melt-Queched Le-Fe Allays" J.Phys TV FRANCE Colloque C2. 7・C2. 1015-1016 (1997)

M.Matsuura、H.Ino 等人：“用于熔融淬火 Le-Fe 合金的非晶 Fe 簇嵌入”J.Phys TV FRANCE Colloque C2 1015-1016 (1997)。

S.Yoshiike, H.Ino: "Structure of Melt-Quenched La-Fe Alloys of the Magnetization"Master. Trans. JIM. 39. 102-109 (1998)

S.Yoshiike、H.Ino：《磁化熔融淬火La-Fe合金的结构》硕士。

吉池彰吾、井野博満、他: "液体急冷Pr-Fe合金の構造と超強磁性モデルによる磁化解析"日本金属学会誌. 62. 15-21 (1998)

Shogo Yoshiike、Hiromitsu Ino 等人：“液体淬火 Pr-Fe 合金的结构和使用超铁磁模型的磁化分析”日本金属学会杂志 62. 15-21 (1998)。