التفاصيل البيبلوغرافية
| العنوان: |
Nonlinear and Nonreciprocal Transport Effects in Untwinned Thin Films of Ferromagnetic Weyl Metal SrRuO₃ |
| المؤلفون: |
Kar, Uddipta, Lu, Elisha Cho-Hao, Singh, Akhilesh Kr., Reddy, P. V. Sreenivasa, Han, Youngjoon, Li, Xinwei, Cheng, Cheng-Tung, Yang, Song, Lin, Chun-Yen, Cheng, I-Chun, Hsu, Chia-Hung, Hsieh, David, Lee, Wei-Cheng, Guo, Guang-Yu, Lee, Wei-Li |
| المصدر: |
Physical Review X, 14(1), 011022, (2024-01) |
| بيانات النشر: |
American Physical Society |
| سنة النشر: |
2024 |
| المجموعة: |
Caltech Authors (California Institute of Technology) |
| مصطلحات موضوعية: |
General Physics and Astronomy |
| الوصف: |
The identification of distinct charge transport features, deriving from nontrivial bulk band and surface states, has been a challenging subject in the field of topological systems. In topological Dirac and Weyl semimetals, nontrivial conical bands with Fermi-arc surface states give rise to negative longitudinal magnetoresistance due to chiral anomaly effect and unusual thickness dependent quantum oscillation from Weyl-orbit effect, which were demonstrated recently in experiments. In this work, we report the experimental observations of large nonlinear and nonreciprocal transport effects for both longitudinal and transverse channels in an untwinned Weyl metal ofSrRuO₃thin film grown on aSrTiO₃substrate. From rigorous measurements with bias current applied along various directions with respect to the crystalline principal axes, the magnitude of nonlinear Hall signals from the transverse channel exhibits a simplesinαdependence at low temperatures, whereαis the angle between bias current direction and orthorhombic[001]â‚’, reaching a maximum when current is along orthorhombic[1¯10]â‚’. On the contrary, the magnitude of nonlinear and nonreciprocal signals in the longitudinal channel attains a maximum for bias current along[001]o, and it vanishes for bias current along[1¯10]â‚’. The observedα-dependent nonlinear and nonreciprocal signals in longitudinal and transverse channels reveal a magnetic Weyl phase with an effective Berry curvature dipole along[1¯10]â‚’from surface states, accompanied by 1D chiral edge modes along[001]â‚’. ; Published by the American Physical Society under the terms of theCreative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. ; We thank N. Nagaosa, Q. Niu, Q. Ma, J. Shan, and M. Orlita for valuable discussions. This work was supported by the National Science and Technology Council of Taiwan (NSTC Grants No. 108-2628-M-001-007-MY3, No. ... |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| العلاقة: |
https://doi.org/10.1103/physrevx.14.011022Test; oai:authors.library.caltech.edu:xzrcg-q7w19 |
| DOI: |
10.1103/physrevx.14.011022 |
| الإتاحة: |
https://doi.org/10.1103/physrevx.14.011022Test |
| حقوق: |
info:eu-repo/semantics/openAccess ; Creative Commons Attribution 4.0 International ; https://creativecommons.org/licenses/by/4.0/legalcodeTest |
| رقم الانضمام: |
edsbas.780D20F9 |
| قاعدة البيانات: |
BASE |
