B20 韦尔半金属CoSi薄膜由闪光灯火制成
Zichao Li1,2, Ye Yuan1,3, René Hübner1
1Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.
ACS applied materials & interfaces
|June 16, 2023
概括
研究人员开发了一种新方法,使用闪光灯火来生长Weyl半金属B20-CoSi的薄膜. 这种技术可以创建高质量的片,用于拓电子的潜在应用.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
背景情况:
- B20-CoSi是最近发现的维尔半金属,具有非中心对称的晶体结构.
- 对B20-CoSi的研究主要集中在散装材料上,限制了其实际应用.
- 在技术上相关的基板上的薄膜生长对于设备制造至关重要.
研究的目的:
- 开发一种培养高质量的B20-CoSi薄膜的方法.
- 研究这些薄膜的特性,包括磁性和传输特性.
- 建立一种生产B20过渡金属化物薄膜的可行技术.
主要方法:
- 使用毫秒范围的闪光灯回火,一个不平衡的固态反应.
- 优化化参数,以获得纯B20-CoSi相薄膜.
- 进行磁性和传输测量以表征膜.
主要成果:
- 通过闪光灯化成功生长纯B20-CoSi薄膜.
- 在薄膜中观察到电荷密度波和奇拉异常的出现.
- 证明了生产B20过渡金属化物薄膜的方法的有效性.
结论:
- 闪光灯回火是B20-CoSi薄膜合成的一个有前途的不平衡方法.
- 合成的薄膜表现出与拓Weyl半金属相关的特性.
- 这项工作为探索二元B20过渡金属化物薄膜的先进应用铺平了道路.
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