Anisotropic optical and magneto-optical properties of antiferromagnetic Weyl semimetal Mn3Sn epitaxial thin films
Source abstract
Abstract
Antiferromagnetic Weyl semimetal Mn3Sn exhibiting strong magneto-optical Kerr effect (MOKE) due to non-zero Berry curvature is attractive for spintronic and photonic device applications. Despite many reports on the anisotropic anomalous Hall effect (AHE), so far, there have been few studies on its anisotropic optical properties. In this work, we experimentally characterized the anisotropic optical and magneto-optical (MO) properties of Mn3Sn(20)/MgO(110) and Mn3Sn(0001)/Al2O3(0001) epitaxial films using ellipsometry in the wavelength range from 300 to 1690 nm. By measuring the Mueller matrix of magnetized Mn3Sn, the anisotropic permittivity tensor is determined using the 4 × 4 transfer matrix method. Temperature dependent MOKE measurement confirmed the origin of the anisotropic MO effect to the non-zero Berry curvature of the chiral magnetic phase. The measured permittivity also agrees well with first-principles calculations. The anisotropic optical and MO properties determined in this work can be useful for Mn3Sn based spintronic device characterization and photonic device development.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Heusler alloys: electronic and magnetic properties · 2D Materials and Applications · Topological Materials and Phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electronic Science and Engineering, University of Electronic Science and Technology of China 1 , Chengdu 611731, China
National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China 2 , Chengdu 611731, China
Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education, University of Electronic Science and Technology of China 3 , Chengdu 611731, China
Information Materials and Device Applications Key Laboratory of Sichuan Provincial Universities, Chengdu University of Information Technology 4 , Chengdu 610225, China
Funding
Ministry of Science and Technology of the People’s Republic of China · National Natural Science Foundation of China · Sichuan Provincial Science and Technology Department · China Postdoctoral Science Foundation · The Scientific Research Foundation of Chengdu University of Information Technology
References (42)
Show source-provided references
1. Large anomalous Hall effect in a non-collinear antiferromagnet at room temperature10.1038/nature15723 ↗
2. Piezomagnetic switching of the anomalous Hall effect in an antiferromagnet at room temperature10.1038/s41567-022-01645-5 ↗
3. Large anomalous Nernst effect at room temperature in a chiral antiferromagnet10.1038/nphys4181 ↗
4. Noncollinear Mn3Sn for antiferromagnetic spintronics10.1016/j.mtphys.2022.100878 ↗
5. Perpendicular full switching of chiral antiferromagnetic order by current10.1038/s41586-022-04864-1 ↗
6. Cluster multipole dynamics in noncollinear antiferromagnets10.1103/physrevresearch.2.012045 ↗
7. Large anomalous Hall effect driven by a nonvanishing Berry curvature in the noncolinear antiferromagnet Mn3Ge10.1126/sciadv.1501870 ↗
8. Handedness anomaly in a non-collinear antiferromagnet under spin–orbit torque10.1038/s41563-023-01620-2 ↗
9. Room-temperature magnetoresistance in an all-antiferromagnetic tunnel junction10.1038/s41586-022-05461-y ↗
10. Electrical switching of the topological anomalous Hall effect in a non-collinear antiferromagnet above room temperature10.1038/s41928-018-0040-1 ↗
11. Large magneto-optical Kerr effect and imaging of magnetic octupole domains in an antiferromagnetic metal10.1038/s41566-017-0086-z ↗
12. Anomalous transport due to Weyl fermions in the chiral antiferromagnets Mn3X, X = Sn, Ge10.1038/s41467-020-20838-1 ↗
13. Octupole-driven magnetoresistance in an antiferromagnetic tunnel junction10.1038/s41586-022-05463-w ↗
14. Chiral-spin rotation of non-collinear antiferromagnet by spin–orbit torque10.1038/s41563-021-01005-3 ↗
15. Large magneto-optical Kerr effect in noncollinear antiferromagnets Mn3X (X = Rh, Ir, Pt)10.1103/physrevb.92.144426 ↗
16. Comparing the anomalous Hall effect and the magneto-optical Kerr effect through antiferromagnetic phase transitions in Mn3Sn10.1063/1.5066557 ↗
17. Observation of domain structure in non-collinear antiferromagnetic Mn3Sn thin films by magneto-optical Kerr effect10.1063/5.0089355 ↗
18. Epitaxial growth of high quality Mn3Sn thin films by pulsed laser deposition10.1063/5.0124578 ↗
19. Domain structure and domain wall dynamics in topological chiral antiferromagnets from the viewpoint of magnetic octupole10.1063/5.0034938 ↗
20. Large ultrafast-modulated Voigt effect in noncollinear antiferromagnet Mn3Sn10.1038/s41467-021-25654-9 ↗
21. Room-temperature terahertz anomalous Hall effect in Weyl antiferromagnet Mn3Sn thin films10.1038/s41467-020-14690-6 ↗
22. Orientation-dependent THz emission in non-collinear antiferromagnetic Mn3Sn and Mn3Sn-based heterostructures10.1063/1.5121384 ↗
23. Quantum classical approach to spin and charge pumping and the ensuing radiation in terahertz spintronics: Example of the ultrafast light-driven Weyl antiferromagnet Mn3Sn10.1103/physrevb.107.174421 ↗
24. An anomalous Hall effect in altermagnetic ruthenium dioxide10.1038/s41928-022-00866-z ↗
25. Spontaneous anomalous Hall effect arising from an unconventional compensated magnetic phase in a semiconductor10.1103/physrevlett.130.036702 ↗
26. Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set10.1103/physrevb.54.11169 ↗
27. Generalized gradient approximation made simple10.1103/physrevlett.77.3865 ↗
28. Polarized neutron diffraction study of the spin structure of Mn3Sn10.1143/jpsj.51.803 ↗
29. Determination of the magnetic structure of Mn3Sn using generalized neutron polarization analysis10.1088/0953-8984/2/47/015 ↗
30. Anomalous Nernst and Righi-Leduc effects in Mn3Sn: Berry curvature and entropy flow10.1103/physrevlett.119.056601 ↗
31. Large topological Hall effect in the non-collinear antiferromagnet Mn3Sn10.1038/s41467-023-37076-w ↗
32. Optical study of the three-dimensional Weyl semimetal Mn3Sn10.1103/physrevb.108.235109 ↗
33. Observation of optical gyromagnetic properties in a magneto-plasmonic metamaterial10.1038/s41467-022-29452-9 ↗
34. Topological Weyl semimetals in the chiral antiferromagnetic materials Mn3Ge and Mn3Sn10.1088/1367-2630/aa5487 ↗
35. Cluster multipole theory for anomalous Hall effect in antiferromagnets10.1103/physrevb.95.094406 ↗
36. Momentum-space and real-space Berry curvatures in Mn3Sn10.21468/scipostphys.5.6.063 ↗
37. Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates10.1103/physrevb.83.205101 ↗
38. Kondo physics in antiferromagnetic Weyl semimetal Mn3+xSn1−x films10.1126/sciadv.abc1977 ↗
39. Evidence for magnetic Weyl fermions in a correlated metal10.1038/nmat4987 ↗
40. Collinear and noncollinear ferrimagnetic phases in Mn4N investigated by magneto-optical Kerr spectroscopy10.1063/5.0170621 ↗
41. Optical and magneto-optical properties of epitaxial Mn2GaC MAX phase thin film10.1016/j.jmmm.2021.167803 ↗
42. Scanning tunneling microscopy on cleaved Mn3Sn(0001) surface10.1038/s41598-019-45958-7 ↗