Room Temperature Ferromagnetism in Lithium-Doped ZnO

Ran, Cong-Jun; Xu, Xiaoguang; Yang, Hongxun; Wang, Y. K.; Miao, J.; Jiang, Yong

doi:10.1109/tmag.2012.2196415

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…The studied wires had a diameter of between ≃0.5 μm and ≃10 μm and a length of some ≃100 μm. The percentage of Li was chosen following previous reports [16][17][18]. The H + implantation of the ZnO microwires was performed in a remote hydrogen DC-plasma chamber in parallel-plate configuration for 1 h at a current of 60 μA [15,19].…”

Section: Methodsmentioning

confidence: 99%

Study of the negative magneto-resistance of single proton-implanted lithium-doped ZnO microwires

Lorite

Zandalazini

Esquinazi

et al. 2015

J. Phys.: Condens. Matter

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The magneto-transport properties of single proton-implanted ZnO and of Li(7%)-doped ZnO microwires have been studied. The as-grown microwires were highly insulating and not magnetic. After proton implantation the Li(7%) doped ZnO microwires showed a non-monotonous behavior of the negative magneto-resistance (MR) at temperature above 150 K. This is in contrast to the monotonous NMR observed below 50 K for proton-implanted ZnO. The observed difference in the transport properties of the wires is related to the amount of stable Zn vacancies created at the near surface region by the proton implantation and Li doping. The magnetic field dependence of the resistance might be explained by the formation of a magnetic/non-magnetic heterostructure in the wire after proton implantation.

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Section: Methodsmentioning

confidence: 99%

Study of the negative magneto-resistance of single proton-implanted lithium-doped ZnO microwires

Lorite

Zandalazini

Esquinazi

et al. 2015

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

Influence of Lithium doping on the correlated ferromagnetic ordering and red shift of band gap in weakly Mn-doped ZnO nanoparticles

Satheesan

Kumar

2016

J Mater Sci: Mater Electron

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Fabrication, characterization and magnetic properties of Na-doped ZnO nanorods

Piao

Tseng

Suzuki

et al. 2016

Funct. Mater. Lett.

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Na-doped ZnO nanorods have been fabricated through a hydrothermal method. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses indicate that the d spacing of ZnO increases with increasing doping concentration, suggesting the effective incorporation of dopant Na in the samples. Electron paramagnetic resonance (EPR) measurements indicate that there are shallow donors in pure ZnO samples and the shallow donors are strongly prohibited by Na doping. In addition, the resonance at g = 2.005 suggests the formation of Zn vacancies. Magnetic measurements indicate that pure ZnO is paramagnetic and Na doping leads to ferromagnetism at room temperature. Moreover, 0.5% Na-doped ZnO nanorods exhibits the largest saturation magnetization.

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Room Temperature Ferromagnetism in Lithium-Doped ZnO

Cited by 4 publications

References 28 publications

Study of the negative magneto-resistance of single proton-implanted lithium-doped ZnO microwires

Study of the negative magneto-resistance of single proton-implanted lithium-doped ZnO microwires

Influence of Lithium doping on the correlated ferromagnetic ordering and red shift of band gap in weakly Mn-doped ZnO nanoparticles

Fabrication, characterization and magnetic properties of Na-doped ZnO nanorods

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