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Formation and magnetic properties of InFeP:Ag nanorods fabricated with noble metal Ag using an ion milling method

Authors
Sohn, Jae MinKim, HyungsangIm, HyunsikKim, HyungbaeLee, JuwonShon, YoonSubramaniam, N. G.Kang, TaewonKim, Deuk YoungKoo, Hyun CheolLee, Joo-hyeonSong, Jing DongPark, Chang-SooKim, Eun Kyu
Issue Date
15-12월-2017
Publisher
IOP PUBLISHING LTD
Keywords
noble metal; InFeP:Ag nanorods; ferromagnetism; diluted magnetic semiconductor
Citation
NANOTECHNOLOGY, v.28, no.50
Indexed
SCIE
SCOPUS
Journal Title
NANOTECHNOLOGY
Volume
28
Number
50
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/81165
DOI
10.1088/1361-6528/aa9832
ISSN
0957-4484
Abstract
The formation, including the density and height of the InFeP:Ag nanorods doped with noble metal Ag using an ion milling method, was preponderantly determined from transmission electron microscopy and x-ray diffraction analyses. We investigate, in particular, the enhanced ferromagnetism of the well-aligned InFeP:Ag nanorods. Auger electron spectroscopy and x-ray photoelectron spectroscopy measurements were carried out in order to investigate the incorporation of Ag and to verify the local chemical bonding of the InFeP:Ag nanorods. The variation of FWHM for the double-crystal x-ray rocking curve and triple-axis diffraction peaks demonstrates that noble metal Ag is incorporated into the InFeP:Ag nanorods. The noticeable ferromagnetic signature (M-H curve) of the InFeP:Ag nanorods is observed and T-c persists up to almost 350 K (3.9 x 10(-1) emu g(-1)), as determined by temperature-dependence magnetization (M-T curve) measurements. This study suggests that the InFeP:Ag nanorods should be a potential candidate for the application of spintronic devices.
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