Magnetism from Co and Eu implanted into ZnO
Films of ZnO have been implanted with fluxes of Co and Eu ions so as to give a layer of Zn0.96Co0.04O or Zn0.96Eu0.04O or Zn0.92Co0.04Eu0.04O that is approximately 15 nm thick. The ZnO films were deposited by pulsed laser deposition and had an O-polar surface. The properties of the as-implanted films were compared with those obtained after annealing in air and vacuum. The amount of radiation damage was measured using Raman scattering. Measurements of the lattice constants and EXAFS demonstrated that after annealing in air the Co2+ were on Zn sites in the lattice and Eu3+ ions were surrounded by oxygen ions. The air-annealed films were ferromagnetic and the magnetic moment of the ZnCoEuO was close to the sum of that from ZnCoO and ZnEuO. This method of producing ferromagnetic ZnCoO and ZnEuO films was competitive with other methods including pulsed laser deposition.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division; King Abdulaziz City for Science and Technology (KACST); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; Engineering and Physical Sciences Resource Council (EPSRC)
- Grant/Contract Number:
- AC02-06CH11357; EP/D070406/1
- OSTI ID:
- 1765048
- Alternate ID(s):
- OSTI ID: 1765450; OSTI ID: 1774613; OSTI ID: 1781927
- Journal Information:
- Journal of Magnetism and Magnetic Materials, Journal Name: Journal of Magnetism and Magnetic Materials Vol. 527 Journal Issue: C; ISSN 0304-8853
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
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