The Mssbauer studies of moment distributions and electron structure for amorphous Fe-（Co,Cr）-Zr alloys

Huang Zhigao

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The Mssbauer studies of moment distributions and electron structure for amorphous Fe-（Co,Cr）-Zr alloys

更新时间：2021-04-09

- The Mssbauer studies of moment distributions and electron structure for amorphous Fe-（Co,Cr）-Zr alloys
- NUCLEAR TECHNIQUES Issue 12, (1997)
- 作者机构：
  
  福建师范大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG139
- Published：01 December 1997
- 稿件说明：
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[1]黄志高.非晶态 Fe-(Co,Cr)-Zr 合金的磁矩分布和电子结构的穆斯堡尔谱研究[J].核技术,1997(12):2-9.

Huang Zhigao. The Mssbauer studies of moment distributions and electron structure for amorphous Fe-（Co,Cr）-Zr alloys[J]. Nuclear techniques, 1997, (12).
[1]黄志高.非晶态 Fe-(Co,Cr)-Zr 合金的磁矩分布和电子结构的穆斯堡尔谱研究[J].核技术,1997(12):2-9. DOI：

Huang Zhigao. The Mssbauer studies of moment distributions and electron structure for amorphous Fe-（Co,Cr）-Zr alloys[J]. Nuclear techniques, 1997, (12). DOI：

摘要

分析了室温、７７Ｋ及外加磁场下淬火态和室温下掺氢非晶态Ｆｅ９０－ｘＣｏｘＺｒ１０（ｘ＝４，１０，２０，３０，４０）和Ｆｅ９０－ｙＣｒｙＺｒ１０（ｙ＝０，４，７，１３，１６）的穆期堡尔谱和超精精细场分布Ｐ（Ｈｈｆ）～Ｈｈｆ。实验结果表明：（１）Ｆｅ９０－ｘＣｏｘＺｒ１０（ｘ＝３０，４０）的Ｐ（Ｈｈｆ）是单峰的，表现为强的铁磁性；而Ｆｅ９０－ｘＣｏｘＺｒ１０（ｘ＝４，１０，２０）和Ｆｅ９０－ｙＣｒｙＺｒ１０（ｙ＝０，４，７，１３，１６）的Ｐ（Ｈｈｆ）是双峰或三峰的，采用高斯分布拟合Ｐ（Ｈｈｆ）而得到的低场磁矩的百分比随Ｃｏ（Ｃｒ）含量、温度、外加磁场和掺氢量而变化。在富Ｆｅ区观察到了异常的行为，这些都表明了合金中磁的非均匀性和Ｉｎｖａｒ特性；（２）Ｆｅ－（Ｃｏ，Ｃｒ）－Ｚｒ合金的自旋无序度随Ｃｏ含量减少、Ｃｒ含量增加而增加；（３）Ｆｅ９０－ｘＣｏｘＺｒ１０（ｘ＝４，１０，２０，３０，４０）的磁矩择优取向于合金薄膜的长度方向。用密度不均匀的“３ＤＦＭ＋ＦＳ＋ＦＳＣ”模型满意地解释了实验结果。

Abstract

The Mssbauer spectra and hyperfine filed distributions P（H hf ） -H hf of as quenched and hydrided amorphous Fe 90-x Co xZr 10 x=4

40) and Fe 90-y Cr yZr 10 （y=0

16） alloys were measured at room temperature

77K and in an applied magnetic filed.The experimental results reveal that （1） the P（H hf ） curves of Fe 90-x Cr xZr 10 （x=30

40） are single and narrow

which means that they are strong ferromagnets

while the P（H hf ）curves of Fe 90-x Co xZr 10 （x=4

20） and Fe 90-y Cr yZr 10 （y=0

16） comprise two or three Gaussian distributions

and the low-filed spin（moment） fractions vary with Co（Cr） content

temperature

applied magnetic filed and hydrogenation;and anomalous behavior exists in Co-poor Fe-（Co

Cr）-Zr alloys

indicating the magnetic inhomogeneity and Invar character;（2） the degree of disorder of spins for Fe-（Co

Cr）-Zr alloys increases with decreasing Co content and increasing Cr content;（3） the moment distributions of Fe 90-x Co xZr 10 （x=4

40） are preferential at the direction of the films length.A “3DFM+FS+FSC”model containing density inhomogeneity provides a satisfactory explanation for the present results.

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