用添加c-BN作为一个有前途的途径,在120K以上的环境压力下实现高温超导
Han-Bin Ding1,2, Rui Niu1,2, Shen-Ao Li1,3
1Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 7, 2024
概括
研究人员探索了硬材料的环境压力超导性. 用剂合的立方化对122 K的高温超导性能显示出有前途.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 超导电性 超导电性 超导电性
背景情况:
- 在环境压力下发现高温超导仍然是一个重大挑战.
- 硬质或超硬质材料被认为是实现这一目标的有希望的候选材料.
研究的目的:
- 为了研究 (H) 和 (Li) 合的立方化 (c-BN) 对环境压力超导的潜力.
- 探索这些兴奋剂材料的电子结构和超导特性.
主要方法:
- 用第一原则计算来研究电子结构.
- 分析了和添加c-BN的超导特性.
主要成果:
- 化c-BN化合物在从绝缘状态过渡后表现出金属行为.
- 预计化c-BN的超导过渡温度 (Tc) 约为58K.
- -化c-BN显示更强的电子-声子相互作用,预测更高的Tc为122K.
结论:
- 被杂的c-BN材料被确定为潜在的环境压力超导体.
- 这项研究为探索硬材料中高温超导的新途径打开了大门.
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