灭的二进制和三进制准晶近似体的磁性特性
Fernand Denoel1, Takayuki Shiino2, Yu-Chin Huang3
1Department of Materials Science and Engineering, Uppsala University, Box 35, 751 03, Uppsala, Sweden. fernand.denoel@angstrom.uu.se.
新的合成方法揭示了加多-和加多-金-晶体的磁性特性. 研究人员将这些发现与使用传统自流方法培养的晶体进行了比较.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 磁力学 磁力学 是一种
背景情况:
- 研究稀土金属间化合物的磁性对于开发新的磁性材料至关重要.
- 低度周形成 (LMPF) 合成方法为晶体生长提供了一种新的方法.
研究的目的:
- 探索通过LMPF合成的二进制Gd-Cd和三进制Gd-Au-Ge晶体的磁性特性.
- 将LMPF培养的晶体的磁性特征与通过自流 (SF) 方法获得的磁性特征进行比较.
主要方法:
- Gd-Cd和Gd-Au-Ge的晶体是使用低度周形成 (LMPF) 方法合成的,该方法涉及快速火和回火.
- 在Gd-Cd中实现了准晶 (QC) 和近似晶 (AC) 阶段的合成,在Gd-Au-Ge中实现了AC阶段的合成.
- 测量了磁性特性,并与使用自流 (SF) 方法培养的晶体进行了比较.
主要成果:
- 准晶体 (QC) 和近似晶体 (AC) 阶段都在二进制Gd-Cd系统中得到稳定.
- 在伪二进制的Gd-Au-Ge系统中,只能获得AC相.
- 用LMPF合成的晶体的磁性特性被系统地与用SF生长的晶体进行了比较.
结论:
- 在合成具有不同相位的Gd-Cd和Gd-Au-Ge晶体方面,LMPF方法是有效的.
- 对比分析提供了对合成方法对磁性特性影响的见解.
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