Optical and magnetic properties of solid solutions of In 2-xMn xO 3 (0.05, 0.10 and 0.15) nanoparticles

Sarvari Khatoon; Kelsey Coolahan; Samuel E. Lofland; Tokeer Ahmad

doi:10.1016/j.jallcom.2012.08.038

Optical and magnetic properties of solid solutions of In _2-xMn _xO ₃ (0.05, 0.10 and 0.15) nanoparticles

Sarvari Khatoon, Kelsey Coolahan, Samuel E. Lofland, Tokeer Ahmad

Physics

Research output: Contribution to journal › Article

27 Scopus citations

Abstract

Mn-doped indium oxide (In _2-xMn _xO ₃) nanoparticles (7-12 nm) with x = 0.05, 0.10 and 0.15 have been synthesized by solvothermal method using oxalate precursor route for the first time. Powder X-ray diffraction studies showed the formation of monophasic cubic structure of In _2-xMn _xO ₃ solid solutions. X-ray diffraction and UV-visible reflectance studies revealed that Mn ²⁺ ions are doped into the In ₂O ₃ lattice. Reflectance measurements showed red shift in an energy band gap which decreases with an increase in the Mn concentration. Maximum surface area of 768 m ² g ^-1 is obtained for In _1.85Mn _0.15O ₃ nanoparticles. Magnetization measurement revealed that all the samples are paramagnetic in nature with very weak antiferromagnetic interactions.

Original language	English (US)
Pages (from-to)	162-167
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	545
DOIs	https://doi.org/10.1016/j.jallcom.2012.08.038
State	Published - Dec 25 2012

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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Khatoon, S., Coolahan, K., Lofland, S. E., & Ahmad, T. (2012). Optical and magnetic properties of solid solutions of In _2-xMn _xO ₃ (0.05, 0.10 and 0.15) nanoparticles. Journal of Alloys and Compounds, 545, 162-167. https://doi.org/10.1016/j.jallcom.2012.08.038

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title = "Optical and magnetic properties of solid solutions of In 2-xMn xO 3 (0.05, 0.10 and 0.15) nanoparticles",

abstract = "Mn-doped indium oxide (In 2-xMn xO 3) nanoparticles (7-12 nm) with x = 0.05, 0.10 and 0.15 have been synthesized by solvothermal method using oxalate precursor route for the first time. Powder X-ray diffraction studies showed the formation of monophasic cubic structure of In 2-xMn xO 3 solid solutions. X-ray diffraction and UV-visible reflectance studies revealed that Mn 2+ ions are doped into the In 2O 3 lattice. Reflectance measurements showed red shift in an energy band gap which decreases with an increase in the Mn concentration. Maximum surface area of 768 m 2 g -1 is obtained for In 1.85Mn 0.15O 3 nanoparticles. Magnetization measurement revealed that all the samples are paramagnetic in nature with very weak antiferromagnetic interactions.",

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AU - Khatoon, Sarvari

AU - Coolahan, Kelsey

AU - Lofland, Samuel E.

AU - Ahmad, Tokeer

PY - 2012/12/25

Y1 - 2012/12/25

N2 - Mn-doped indium oxide (In 2-xMn xO 3) nanoparticles (7-12 nm) with x = 0.05, 0.10 and 0.15 have been synthesized by solvothermal method using oxalate precursor route for the first time. Powder X-ray diffraction studies showed the formation of monophasic cubic structure of In 2-xMn xO 3 solid solutions. X-ray diffraction and UV-visible reflectance studies revealed that Mn 2+ ions are doped into the In 2O 3 lattice. Reflectance measurements showed red shift in an energy band gap which decreases with an increase in the Mn concentration. Maximum surface area of 768 m 2 g -1 is obtained for In 1.85Mn 0.15O 3 nanoparticles. Magnetization measurement revealed that all the samples are paramagnetic in nature with very weak antiferromagnetic interactions.

AB - Mn-doped indium oxide (In 2-xMn xO 3) nanoparticles (7-12 nm) with x = 0.05, 0.10 and 0.15 have been synthesized by solvothermal method using oxalate precursor route for the first time. Powder X-ray diffraction studies showed the formation of monophasic cubic structure of In 2-xMn xO 3 solid solutions. X-ray diffraction and UV-visible reflectance studies revealed that Mn 2+ ions are doped into the In 2O 3 lattice. Reflectance measurements showed red shift in an energy band gap which decreases with an increase in the Mn concentration. Maximum surface area of 768 m 2 g -1 is obtained for In 1.85Mn 0.15O 3 nanoparticles. Magnetization measurement revealed that all the samples are paramagnetic in nature with very weak antiferromagnetic interactions.

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