Open AccessAssembling non-ferromagnetic materials to ferromagnetic architectures using metal-semiconductor interfaces
Author(s) -
Ji Ma,
Chunting Liu,
Kezheng Chen
Publication year - 2016
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/srep34404
Subject(s) - ferromagnetism , materials science , coercivity , condensed matter physics , semiconductor , metal , ferromagnetic material properties , saturation (graph theory) , magnetization , optoelectronics , magnetic field , metallurgy , physics , mathematics , quantum mechanics , combinatorics
In this work, a facile and versatile solution route was used to fabricate room-temperature ferromagnetic fish bone-like, pteridophyte-like, poplar flower-like, cotton-like Cu@Cu 2 O architectures and golfball-like Cu@ZnO architecture. The ferromagnetic origins in these architectures were found to be around metal-semiconductor interfaces and defects, and the root cause for their ferromagnetism lay in charge transfer processes from metal Cu to semiconductors Cu 2 O and ZnO. Owing to different metallization at their interfaces, these architectures exhibited different ferromagnetic behaviors, including coercivity, saturation magnetization as well as magnetic interactions.