论文类型：期刊论文
第一作者：Lei Wu
通讯作者：Zengwei Zhu,Yongkang Luo,Lingxiao Zhao
合写作者：Gang Xu,Huakun Zuo,Shengwei Chi
发表刊物：npj Quantum Materials
收录刊物：SCI
学科门类：物理学
文献类型：J
卷号：8
期号：1
页面范围：4
ISSN号：2397-4648
发表时间：2023-01-10
影响因子：6.856
摘要：Lifshitz transition (LT) refers to an abrupt change in the electronic structure and Fermi surface and is associated to a variety of emergent quantum phenomena. Amongst the LTs observed in known materials, the field-induced LT has been rare and its origin remains elusive. To understand the origin of field-induced LT, it is important to extend the material basis beyond the usual setting of heavy fermion metals. Here, we report on a field-induced LT in PrAlSi, a magnetic Weyl semimetal candidate with localized 4f electrons, through a study of magnetotransport up to 55 T. The quantum oscillation analysis reveals that across a threshold field B* ≈ 14.5 T the oscillation frequency (F1 = 43 T) is replaced by two new frequencies (F2 = 62 T and F3 = 103 T). Strikingly, the LT occurs well below the quantum limit, with obvious temperature-dependent oscillation frequency and field-dependent cyclotron mass. Our work not only enriches the rare examples of field-induced LTs but also paves the way for further investigation of the interplay among topology, magnetism, and electronic correlation.
发布期刊链接：https://www.nature.com/articles/s41535-023-00537-y