https://scholars.lib.ntu.edu.tw/handle/123456789/606571
標題: | Normal-state negative longitudinal magnetoresistance and Dirac-cone-like dispersion in PtPb4single crystals: A potential Weyl-semimetal superconductor candidate | 作者: | Wang L.-M Lin S.-E Shen D Chen I.-N. LI-MIN WANG |
關鍵字: | chiral anomaly; quantum magnetoresistance; topological superconductor; Weyl semimetal; Dispersions; Magnetoresistance; Platinum compounds; Quantum chemistry; Quantum theory; Single crystals; Superconducting materials; Chiral anomaly; Dirac cones; Longitudinal magnetoresistance; Magneto-transport measurement; Measurements of; Normal state; Quantum magnetoresistance; Topological superconductor; Transverse magnetoresistance; Weyl semimetal; Topology | 公開日期: | 2021 | 卷: | 23 | 期: | 9 | 來源出版物: | New Journal of Physics | 摘要: | Magnetotransport measurements of PtPb4 single crystals with the T c of ?2.80 K reveal pronounced exotic topological nature. An anomalous negative longitudinal magnetoresistance (MR) related to the chiral anomaly and a linear-like transverse MR examined within the framework of quantum MR theory were studied. Results indicate the presence of chiral-anomaly-induced quantum transport associated with the Weyl states and show a Dirac-cone-like band dispersion in PtPb4. This work reveals the drastic impact of the concept that the surface electrons in a Weyl fermion state may dominate the normal-state magnetotransport in PtPb4, leading to the conclusion that PtPb4 can be a Weyl-semimetal superconductor candidate. ? 2021 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115995236&doi=10.1088%2f1367-2630%2fac231b&partnerID=40&md5=752533fa739c8fe48d5db8208832b411 https://scholars.lib.ntu.edu.tw/handle/123456789/606571 |
ISSN: | 13672630 | DOI: | 10.1088/1367-2630/ac231b |
顯示於: | 物理學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。