Fe doped Magnetic Nanodiamonds made by Ion Implantation

ChienHsu Chen; I C Cho; Hui-Shan Jian; H Niu

doi:10.1038/srep41938

Fe doped Magnetic Nanodiamonds made by Ion Implantation

Sci Rep. 2017 Feb 9:7:41938. doi: 10.1038/srep41938.

Authors

ChienHsu Chen¹, I C Cho², Hui-Shan Jian³, H Niu¹

Affiliations

¹ Nuclear Science and Technology Development Center, National Tsing Hua University, HsinChu 30013, Taiwan.
² Department of Medical imaging and Radiological Sciences, Chang Gung University, Taoyuan 33302, Taiwan.
³ Department of Biomedical Engineering and Environment Science, National Tsing Hua University, HsinChu 30013, Taiwan.

Abstract

Here we present a simple physical method to prepare magnetic nanodiamonds (NDs) using high dose Fe ion-implantation. The Fe atoms are embedded into NDs through Fe ion-implantation and the crystal structure of NDs are recovered by thermal annealing. The results of TEM and Raman examinations indicated the crystal structure of the Fe implanted NDs is recovered completely. The SQUID-VSM measurement shows the Fe-NDs possess room temperature ferromagnetism. That means the Fe atoms are distributed inside the NDs without affecting NDs crystal structure, so the NDs can preserve the original physical and chemical properties of the NDs. In addition, the ion-implantation-introduced magnetic property might make the NDs to become suitable for variety of medical applications.