在超导冷凝液碎片中的哈特里-福克相互作用
Edward G Nikonov1,2, Yajiang Chen3, Mauro M Doria4
1HSE University, 101000 Moscow, Russia.
Beilstein journal of nanotechnology
|December 10, 2025
概括
哈特里-福克相互作用显著影响准晶超导体,与传统超导体不同. 这种相互作用会改变超导顺序参数和临界温度,因为系统内在缺乏转换对称性.
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
- 量子力学就是量子力学.
背景情况:
- 哈特里-福克 (HF) 相互作用通常会在不改变可观测的条件下转移常规超导体中的化学潜力.
- 只有当转换对称性被打破时,才会发生偏差,从而导致超导顺序参数和电子密度的空间变化.
- 准晶体系统具有内在的翻译对称性破坏,从而产生独特的电子性质.
研究的目的:
- 研究哈特里-福克相互作用对准晶体超导体的基本影响.
- 分析准晶体的内在碎形性质如何改变高频相互作用对超导性的影响.
- 量化超导顺序参数,临界温度和相关指数的变化.
主要方法:
- 波戈利乌博夫-德热内斯方程的数值解.
- 作为代表性准晶体模型的斐波纳契链的研究.
- 对超导电凝聚物和电子密度的空间分布的分析.
主要成果:
- 高频潜力显著增强了准晶体中顺序参数的自相似空间振荡,超过了半填充.
- 顺序参数的平均值被减少,它的临界指数被HF相互作用改变.
- 观察到临界温度的抑制,在特定参数中达到20%.
结论:
- 哈特里-福克相互作用在半晶超导体中起着至关重要的作用,从根本上不同于它在传统系统中的作用.
- 准确分析准晶体中的超导特性需要比较具有和没有HF相互作用的结果.
- 准晶体的碎形性质导致HF电位对超导电凝和临界温度有明显的影响.
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