Magnetoabsorption effect in carbon coated ZnO nanowires.

Jun-Xiao Lin^1*, Hua-Shu Hsu¹, Jian-Shing Lee¹, Zdenek Reemes²

¹Department of Applied Physics, National Pingtung University, Pingtung, Taiwan
²Institute of Physics CAS, Cukrovarnická 10/112, Czech Republic, Czech Republic

* Presenter:Jun-Xiao Lin, email:leo8412055203@gmail.com

Magnetic field-controlled absorption of electrons has recently attracted a series of attention in magneto-optoelectronic application in order to expand development and enhance its performance. Magnetoabsorption (MA) effect is expected as a potential platform for magnetoptical absorptive behavior, however, modulation of MA properties is a vital role in the optically-controlled devices. This work reports a tunability of sizable MA effect enable induce from suitable defect-mediated engineering as a promotion of large MA effect further magnetic-field-enhancement effect in amorphous carbon (a-C) coated ZnO nanowires (ZnO NWs) even through without influencing on magnetic materials. The marked physical properties related to the charge-transfer-induced spin-polarized density of states (DOSs) splitting accompany with switching the alternation between negative and positive transformation due to change the sp2/sp3 ratio of a-C at a-C/ZnO hybrid nanostructure.

Keywords: Magnetoabsorption, ZnO nanowires, Magnetic-field-controlled optical, Defect engineering