Synthesis and room-temperature ferromagnetism of Zn0.96Mn0.04O∕ZnO coaxial nanocable and Zn0.96Mn0.04O film

Abstract

Zn 0.96 Mn 0.04 O ∕ Zn O coaxial nanocable and Zn0.96Mn0.04O film were prepared by two-step method and magnetron sputtering, respectively. The x-ray diffraction analysis reveals that Mn is incorporated well into the wurtzite ZnO without formation of Mn or Mn oxide. The high resolution transmission electron microscopy image and the selected-area electron diffraction pattern demonstrate that both ZnO and Zn0.96Mn0.04O layers are single crystalline and an epitaxial growth is achieved between Zn0.96Mn0.04O and ZnO in the coaxial nanocable. The magnetic property measurements show that both Zn0.96Mn0.04O∕ZnO nanocable and Zn0.96Mn0.04O film are ferromagnetic at room temperature. Moreover, the saturated magnetization and the coercive field of Zn0.96Mn0.04O∕ZnO coaxial nanocable are larger than those of Zn0.96Mn0.04O film.

Spintronic hydrogen evolution induced by surface plasmon of silver nanoparticles loaded on Fe- and Co-doped ZnO nanorods

“…19,[27][28][29][30][31][32] ZnO has been also considered as a promising diluted magnetic semiconductor (DMS) by introducing with 1~10 % of transitional metals (TM). 33,34 Most of the previous studies focus on the optical, electronic and ferromagnetic behavior of semiconductor materials doped by 1~10 % of transitional metals (TM) (such as Fe, Co, or Ni). 35,36 But these unpaired spin electrons can yield a unprecedently higher speed for transportation than that in traditional electronic devices.…”

Tuning of the electronic structure and magnetic properties of xenon ion implanted zinc oxide

“…Zinc oxide has extensive commercial applications in optoelectronics, microelectronics, sensors and transducers, biomedicine, and space applications [11][12][13][14][15][16][17]. Further, ZnO can also act as a diluted magnetic semiconductor (DMS), since upon doping of transition metal (TM) it shows ferromagnetic behaviour even at room temperature [18][19][20]. The mechanisms of room temperature ferromagnetism (RT-FM) is due to defect induced bound magnetic polarons (BMPs) and carrier mediated exchange interaction [21][22][23].…”

Metal–semiconductor Zn/ZnO core–shell nanocables: facile and large-scale fabrication, growth mechanism, oxidation behavior, and microwave absorption performance

“…10 ZnO/BeO nanocables have been fabricated using a two-step method and improved optical properties were achieved. 11 In addition, nanocables made of ZnO/ZnGa 2 O 4 , 12 ZnO/Eu 2 O 3 , 13 ZnO/SiO 2 , 14 Zn 0.96 Mn 0.04 O/ZnO, 15 ZnO/ZnSe, 16 ZnO/ZnS and ZnO/CdS, 17,18 SnO/ZnO, 19,20 ZnSb 2 O 4 /ZnO, 21 In 2 O 3 /ZnO, 22 and ZnO/CdTe/CdS (ref. [23][24][25][26] have also been reported.…”