Room temperature ferromagnetic properties of In2S3 nanoparticles regulated by doping with Gd ions. Issue 27 (26th June 2019)

• Record Type: Journal Article
• Authors: Liu, Yi; Zhang, Hongpeng; Zhao, Qi; Lu, Qing; Zhu, Mingming; Zhang, Mingzhe
• Is Part Of: Physical chemistry chemical physics. Volume 21:Issue 27(2019)
• Page Start: 15089
• Page End: 15096
• Publication Date: 2019-06-26
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c9cp02554e
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Gd-Doped In2 S3 nanoparticles, with sizes of 3–5 nm, were synthesized, which demonstrated enhanced room-temperature ferromagnetism. Abstract : In2 S3, having a suitable bandgap and tunable magnetism, is a promising material for spintronic applications. Herein, we report that pristine In2 S3 and In2 S3 :Gd 3+ nanoparticles, with room temperature ferromagnetism, were synthesized by a gas–liquid phase chemical deposition method. The bandgap value, photoluminescence (PL) intensity and magnetic properties of In2 S3 :Gd 3+ nanoparticles can be tuned by regulating the Gd 3+ dopant concentration. In addition, the measured saturation magnetization in undoped In2 S3 nanoparticles is 0.011 emu g −1 and the maximum saturation magnetization observed in In2 S3 :Gd 3+ nanoparticles is 0.035 emu g −1 ; the corresponding magnetic mechanism is explicated based on bound-magnetic-polaron (BMP) theory. First-principles DFT calculations reveal that In vacancy and Gd 3+ ion doping can induce intrinsic ferromagnetism. Finally, the results obtained from experiment and theory suggest the potential of Gd-doped In2 S3 for application in spintronic devices.