DataVXACS NanoPaper
journal article·2021-03-23

Berry Phase Engineering in SrRuO3/SrIrO3/SrTiO3 Superlattices Induced by Band Structure Reconstruction

Dongxing Zheng, Yue-Wen Fang, Senfu Zhang, Peng Li, Yan Wen, Bin Fang, Xin He, Yan Li, Chenhui Zhang, Wenyi Tong, Wenbo Mi, Haili Bai, Husam N. Alshareef, Zi Qiang Qiu, Xixiang Zhang

ACS Nano· Volume 15· Issue 3
Publisher page
Source abstract

Abstract

The Berry phase, which reveals the intimate geometrical structure underlying quantum mechanics, plays a central role in the anomalous Hall effect. In this work, we observed a sign change of Berry curvatures at the interface between the ferromagnet SrRuO3 (SRO) layer and the SrIrO3 (SIO) layer with strong spin–orbit coupling. The negative Berry curvature at the interface, induced by the strongly spin–orbit-coupled Ir 5d bands near the Fermi level, makes the SRO/SIO interface different from the SRO layer that has a positive Berry curvature. These opposite Berry curvatures led to two anomalous Hall effect (AHE) channels with opposite signs at the SRO/SIO interface and in the SRO layer, respectively, resulting in a hump-like feature in the Hall resistivity loop. This observation offers a straightforward explanation of the hump-like feature that is usually associated with the chiral magnetic structure or magnetic skyrmions. Hence, this study provides evidence to oppose the widely accepted claim that magnetic skyrmions induce the hump-like feature.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Condensed Matter Physics · Topological Materials and Phenomena · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Physical Science and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia

Tianjin Key Laboratory of Low Dimensional Materials Physics and Processing Technology, Institute of Advanced Materials Physics, Faculty of Science, Tianjin University, Tianjin 300072, China

Laboratory for Materials and Structures & Tokyo Tech World Research Hub Initiative (WRHI), Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan

NYU-ECNU Institute of Physics, New York University Shanghai, Shanghai 200122, China

Theoretical Materials Physics, Q-MAT, CESAM, Université de Liège, B-4000 Liège, Belgium

Department of Physics, University of California at Berkeley, Berkeley, California 94720, United States

Funding

Natural Science Foundation of Tianjin City · Basic Energy Sciences · King Abdullah University of Science and Technology · National Natural Science Foundation of China

References (46)

Show source-provided references
1. 10.1103/PhysRevLett.93.09680610.1103/PhysRevLett.93.096806 ↗
2. 10.1103/PhysRevLett.102.18660210.1103/PhysRevLett.102.186602 ↗
3. 10.1038/nphys388310.1038/nphys3883 ↗
4. 10.1038/nmat493410.1038/nmat4934 ↗
5. 10.1103/PhysRevLett.110.20720210.1103/PhysRevLett.110.207202 ↗
6. 10.1038/nnano.2013.2910.1038/nnano.2013.29 ↗
7. 10.1126/sciadv.160030410.1126/sciadv.1600304 ↗
8. 10.1038/nnano.2013.24310.1038/nnano.2013.243 ↗
9. 10.1038/s41928-019-0246-x10.1038/s41928-019-0246-x ↗
10. 10.1021/acsami.0c0444710.1021/acsami.0c04447 ↗
11. 10.1103/PhysRevResearch.2.02340410.1103/PhysRevResearch.2.023404 ↗
12. 10.1103/PhysRevMaterials.4.01440110.1103/PhysRevMaterials.4.014401 ↗
13. 10.1016/j.cap.2019.10.02110.1016/j.cap.2019.10.021 ↗
14. 10.1038/ncomms1178810.1038/ncomms11788 ↗
15. 10.1038/nature0230810.1038/nature02308 ↗
16. 10.1002/adfm.20180827010.1002/adfm.201808270 ↗
17. 10.1126/science.114600610.1126/science.1146006 ↗
18. 10.1103/PhysRevLett.100.25720310.1103/PhysRevLett.100.257203 ↗
19. 10.1126/science.108940810.1126/science.1089408 ↗
20. 10.1103/RevModPhys.82.153910.1103/RevModPhys.82.1539 ↗
21. 10.1103/PhysRevLett.105.21641010.1103/PhysRevLett.105.216410 ↗
22. 10.1021/acs.nanolett.9b0059610.1021/acs.nanolett.9b00596 ↗
23. 10.1038/s41467-017-02629-310.1038/s41467-017-02629-3 ↗
24. 10.1103/PhysRevB.98.18040810.1103/PhysRevB.98.180408 ↗
25. 10.1103/PhysRevB.19.38410.1103/PhysRevB.19.384 ↗
26. 10.1103/PhysRevB.60.957910.1103/PhysRevB.60.9579 ↗
27. 10.1063/1.512437310.1063/1.5124373 ↗
28. 10.1103/PhysRevLett.119.07720110.1103/PhysRevLett.119.077201 ↗
29. 10.1073/pnas.152468911310.1073/pnas.1524689113 ↗
30. 10.1103/RevModPhys.84.25310.1103/RevModPhys.84.253 ↗
31. 10.1021/acs.nanolett.9b0520610.1021/acs.nanolett.9b05206 ↗
32. 10.1209/0295-5075/90/2700410.1209/0295-5075/90/27004 ↗
33. 10.1103/PhysRevB.98.21444010.1103/PhysRevB.98.214440 ↗
34. 10.1103/PhysRevLett.93.01660210.1103/PhysRevLett.93.016602 ↗
35. 10.1038/nmat493410.1038/nmat4934 ↗
36. 10.1063/5.000259210.1063/5.0002592 ↗
37. 10.1103/PhysRev.136.B86410.1103/PhysRev.136.B864 ↗
38. 10.1103/PhysRev.140.A113310.1103/PhysRev.140.A1133 ↗
39. 10.1103/RevModPhys.82.195910.1103/RevModPhys.82.1959 ↗
40. 10.1038/ncomms1361210.1038/ncomms13612 ↗
41. 10.1088/0953-8984/24/21/21320210.1088/0953-8984/24/21/213202 ↗
42. 10.1103/PhysRevLett.92.03720410.1103/PhysRevLett.92.037204 ↗
43. 10.1016/0927-0256(96)00008-010.1016/0927-0256(96)00008-0 ↗
44. 10.1103/PhysRevB.54.1116910.1103/PhysRevB.54.11169 ↗
45. 10.1073/pnas.181282211610.1073/pnas.1812822116 ↗
46. 10.1021/acs.nanolett.6b0410710.1021/acs.nanolett.6b04107 ↗