Relation between structure and magnetic property of Ti1-xNi xO2 nano-particles

Nguyen Van Minh; Nguyen Cao Khang; In Sang Yang

doi:10.1109/NANO.2008.238

Relation between structure and magnetic property of Ti_1-xNi _xO₂ nano-particles

Nguyen Van Minh, Nguyen Cao Khang, In Sang Yang

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Ti_1-xNi_xO₂ (x =0.00-0.12) nano-particle samples were prepared by sol-gel method. We investigated the effect of Ni doping on the structural and Raman scattering properties of the Ti _1-xNi_xO₂ system. SEM and XRD measurements show that the particle size of the powder is in nano-scale, and that the magnetic Ni impurities substitute for the Ti sites in the anatase TiO₂ phase. Raman spectra also clearly support that the Ni atoms go into the Ti-site in TiO₂. Some of the samples, which are found to be weakly ferromagnetic, show additional Raman peaks at around 420 and 620 cm ^-1. Other samples that do not show the additional Raman peaks are superparamagnetic. The ferromagnetic behavior seems to be due to the existence of Ni or Ni oxide clusters in the Ti_1-xNi_xO₂ system.

Original language	English
Title of host publication	2008 8th IEEE Conference on Nanotechnology, IEEE-NANO
Pages	797-799
Number of pages	3
DOIs	https://doi.org/10.1109/NANO.2008.238
State	Published - 2008
Event	2008 8th IEEE Conference on Nanotechnology, IEEE-NANO - Arlington, TX, United States Duration: 18 Aug 2008 → 21 Aug 2008

Publication series

Name	2008 8th IEEE Conference on Nanotechnology, IEEE-NANO

Conference

Conference	2008 8th IEEE Conference on Nanotechnology, IEEE-NANO
Country/Territory	United States
City	Arlington, TX
Period	18/08/08 → 21/08/08

Access to Document

10.1109/NANO.2008.238

Cite this

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title = "Relation between structure and magnetic property of Ti1-xNi xO2 nano-particles",

abstract = "Ti1-xNixO2 (x =0.00-0.12) nano-particle samples were prepared by sol-gel method. We investigated the effect of Ni doping on the structural and Raman scattering properties of the Ti 1-xNixO2 system. SEM and XRD measurements show that the particle size of the powder is in nano-scale, and that the magnetic Ni impurities substitute for the Ti sites in the anatase TiO2 phase. Raman spectra also clearly support that the Ni atoms go into the Ti-site in TiO2. Some of the samples, which are found to be weakly ferromagnetic, show additional Raman peaks at around 420 and 620 cm -1. Other samples that do not show the additional Raman peaks are superparamagnetic. The ferromagnetic behavior seems to be due to the existence of Ni or Ni oxide clusters in the Ti1-xNixO2 system.",

author = "Minh, {Nguyen Van} and Khang, {Nguyen Cao} and Yang, {In Sang}",

year = "2008",

doi = "10.1109/NANO.2008.238",

language = "English",

isbn = "9781424421046",

series = "2008 8th IEEE Conference on Nanotechnology, IEEE-NANO",

pages = "797--799",

booktitle = "2008 8th IEEE Conference on Nanotechnology, IEEE-NANO",

note = "2008 8th IEEE Conference on Nanotechnology, IEEE-NANO ; Conference date: 18-08-2008 Through 21-08-2008",

}

Minh, NV, Khang, NC & Yang, IS 2008, Relation between structure and magnetic property of Ti_1-xNi _xO₂ nano-particles. in 2008 8th IEEE Conference on Nanotechnology, IEEE-NANO., 4617220, 2008 8th IEEE Conference on Nanotechnology, IEEE-NANO, pp. 797-799, 2008 8th IEEE Conference on Nanotechnology, IEEE-NANO, Arlington, TX, United States, 18/08/08. https://doi.org/10.1109/NANO.2008.238

Relation between structure and magnetic property of Ti_1-xNi _xO₂ nano-particles. / Minh, Nguyen Van; Khang, Nguyen Cao; Yang, In Sang.
2008 8th IEEE Conference on Nanotechnology, IEEE-NANO. 2008. p. 797-799 4617220 (2008 8th IEEE Conference on Nanotechnology, IEEE-NANO).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - Ti1-xNixO2 (x =0.00-0.12) nano-particle samples were prepared by sol-gel method. We investigated the effect of Ni doping on the structural and Raman scattering properties of the Ti 1-xNixO2 system. SEM and XRD measurements show that the particle size of the powder is in nano-scale, and that the magnetic Ni impurities substitute for the Ti sites in the anatase TiO2 phase. Raman spectra also clearly support that the Ni atoms go into the Ti-site in TiO2. Some of the samples, which are found to be weakly ferromagnetic, show additional Raman peaks at around 420 and 620 cm -1. Other samples that do not show the additional Raman peaks are superparamagnetic. The ferromagnetic behavior seems to be due to the existence of Ni or Ni oxide clusters in the Ti1-xNixO2 system.

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