Anisotropic Nodal-Line-Derived Large Anomalous Hall Conductivity in ZrMnP and HfMnP
arXiv:2109.06134 · doi:10.1002/adma.202104126
Abstract
The nontrivial band structure of semimetals has attracted substantial research attention in condensed matter physics and materials science in recent years owing to its intriguing physical properties. Within this class, a group of non-trivial materials known as nodal-line semimetals is particularly important. Nodal-line semimetals exhibit the potential effects of electronic correlation in nonmagnetic materials, whereas they enhance the contribution of the Berry curvature in magnetic materials, resulting in high anomalous Hall conductivity (AHC). In this study, two ferromagnetic compounds, namely ZrMnP and HfMnP, are selected, wherein the abundance of mirror planes in the crystal structure ensures gapped nodal lines at the Fermi energy. These nodal lines result in one of the largest AHC values of 2840 ohm^-1cm^-1, with a high anomalous Hall angle of 13.6 % in these compounds. First-principles calculations provide a clear and detailed understanding of nodal line-enhanced AHC. Our finding suggests a guideline for searching large AHC compounds.
4 figures, 14 pages
References in corpus (5)
- Topological nodal line semimetals
- Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet
- Giant room temperature anomalous Hall effect and magnetically tuned topology in the ferromagnetic Weyl semimetal Co2MnAl
- Discovery of ferromagnetism with large magnetic anisotropy in ZrMnP and HfMnP
- Anisotropic Nodal-Line-Derived Large Anomalous Hall Conductivity in ZrMnP and HfMnP
Cited by in corpus (5)
- Anisotropic Nodal-Line-Derived Large Anomalous Hall Conductivity in ZrMnP and HfMnP
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- Tunable anomalous Hall and Nernst effects in MM'X compounds
- Anomalous Hall effect in the antiferromagnetic Weyl semimetal SmAlSi