DataVXSmallPaper
journal article·2022-09

Giant g‐factor in Self‐Intercalated 2D TaS2

Ziying Wang, Zishen Wang, Xin Zhou, Wei Fu, Haohan Li, Chaofei Liu, Jingsi Qiao, Su Ying Quek, Chenliang Su, Yuanping Feng, Kian Ping Loh

Small· Volume 18· Issue 38
Publisher page
Source abstract

Abstract

Abstract Central to the application of spintronic devices is the ability to manipulate spins by electric and magnetic fields, which relies on a large Landé g‐factor. The self‐intercalation of layered transitional metal dichalcogenides with native metal atoms can serve as a new strategy to enhance the g‐factor by inducing ferromagnetic instability in the system via interlayer charge transfer. Here, scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) are performed to extract the g‐factor and characterize the electronic structure of the self‐intercalated phase of 2H‐TaS2. In Ta7S12, a sharp density of states (DOS) peak due to the Ta intercalant appears at the Fermi level, which satisfies the Stoner criteria for spontaneous ferromagnetism, leading to spin split states. The DOS peak shows sensitivity to magnetic field up to 1.85 mV T−1, equivalent to an effective g‐factor of ≈77. This work establishes self‐intercalation as an approach for tuning the g‐factor.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: 2D Materials and Applications · Graphene research and applications · Molecular Junctions and Nanostructures

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

Affiliations

SZU‐NUS Collaborative Innovation Centre for Optoelectronic Science & Technology International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale Optoelectronics Shenzhen University Shenzhen 518060 China

Department of Chemistry National University of Singapore Singapore 117543 Singapore

Centre for Advanced 2D Materials National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore

Department of Physics National University of Singapore 2 Science Drive 3 Singapore 117551 Singapore

Institute of Materials Research and Engineering Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, 08‐03 Innovis Singapore 138634 Singapore

References (38)

Show source-provided references
1. 10.1147/rd.501.010110.1147/rd.501.0101 ↗
2. 10.1038/natrevmats.2017.3310.1038/natrevmats.2017.33 ↗
3. 10.1038/s41928-019-0273-710.1038/s41928-019-0273-7 ↗
4. 10.1038/s41535-018-0100-910.1038/s41535-018-0100-9 ↗
5. 10.1038/nphys233110.1038/nphys2331 ↗
6. 10.1103/PhysRevLett.105.16720210.1103/PhysRevLett.105.167202 ↗
7. 10.1038/s41565-018-0121-310.1038/s41565-018-0121-3 ↗
8. 10.1038/s41586-018-0626-910.1038/s41586-018-0626-9 ↗
9. 10.1038/s41565-019-0438-610.1038/s41565-019-0438-6 ↗
10. 10.1126/science.aar485110.1126/science.aar4851 ↗
11. 10.1126/science.aar361710.1126/science.aar3617 ↗
12. 10.1063/1.511217110.1063/1.5112171 ↗
13. 10.1038/s41586-020-2241-910.1038/s41586-020-2241-9 ↗
14. 10.1103/RevModPhys.76.32310.1103/RevModPhys.76.323 ↗
15. 10.1038/nphys320310.1038/nphys3203 ↗
16. 10.1103/PhysRevLett.120.06640210.1103/PhysRevLett.120.066402 ↗
17. 10.1103/PhysRevLett.114.03740110.1103/PhysRevLett.114.037401 ↗
18. 10.1038/nnano.2017.6810.1038/nnano.2017.68 ↗
19. 10.1063/1.508744010.1063/1.5087440 ↗
20. 10.1103/PhysRevLett.126.06740310.1103/PhysRevLett.126.067403 ↗
21. 10.1103/PhysRevLett.117.16680110.1103/PhysRevLett.117.166801 ↗
22. 10.1021/acsnano.0c0029110.1021/acsnano.0c00291 ↗
23. 10.1103/PhysRevB.103.01444110.1103/PhysRevB.103.014441 ↗
24. 10.1103/PhysRevB.95.24513810.1103/PhysRevB.95.245138 ↗
25. 10.1103/PhysRevLett.119.03770110.1103/PhysRevLett.119.037701 ↗
26. Weil J. A. · 2007
27. 10.1088/2053-1583/aae14b10.1088/2053-1583/aae14b ↗
28. 10.1021/acsnano.8b0737910.1021/acsnano.8b07379 ↗
29. 10.1080/1478643740820727410.1080/14786437408207274 ↗
30. 10.1103/PhysRevB.89.22451210.1103/PhysRevB.89.224512 ↗
31. 10.1143/PTP.30.27510.1143/PTP.30.275 ↗
32. 10.1103/PhysRevB.93.14440410.1103/PhysRevB.93.144404 ↗
33. 10.1038/nphys320110.1038/nphys3201 ↗
34. 10.1103/PhysRevLett.124.22640210.1103/PhysRevLett.124.226402 ↗
35. 10.1021/acs.nanolett.8b0179810.1021/acs.nanolett.8b01798 ↗
36. 10.1016/0927-0256(96)00008-010.1016/0927-0256(96)00008-0 ↗
37. 10.1103/PhysRevLett.77.386510.1103/PhysRevLett.77.3865 ↗
38. 10.1002/jcc.2049510.1002/jcc.20495 ↗