Enhanced magnetization in proton irradiated Mn3Si2Te6 van der Waals crystals
- Univ. of Texas, El Paso, TX (United States)
- Texas A&M Univ., College Station, TX (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
van der Waals (vdW) engineering of magnetism is a topic of increasing research interest in the community at present. We study themagnetic properties of quasi-two-dimensional layered vdW Mn3Si2Te6 (MST) crystals upon proton irradiation as a function of fluences of 1 × 1015, 5 ×1015, 1 × 1016, and 1 × 1018 H⁺/cm2. We find that the magnetization is significantly enhanced by 53% and 37% in the ferrimagnetic phase (at 50 K) when the MST crystal was irradiated with the proton fluence of 5 ×1015, both in ab and c planes, respectively.The ferrimagnetic ordering temperature and magnetic anisotropy are retained even after proton irradiation. From the fluence dependence of magnetization, electron paramagnetic resonance spectral parameters (g-value and signal width), and Raman data, we show that the magnetic exchange interactions (Mn–Te–Mn) are significantly modified at this fluence. This work shows that it is possible to employ protonirradiation in tuning the magnetic properties of vdW crystals and provide many opportunities to design desired magnetic phases.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1633596
- Alternate ID(s):
- OSTI ID: 1616352
- Report Number(s):
- BNL--216029-2020-JAAM
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 17 Vol. 116; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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