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Oxygen vacancy enhanced room temperature magnetism in Al-doped MgO nanoparticles
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10.1063/1.4804425
/content/aip/journal/apl/102/18/10.1063/1.4804425
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/18/10.1063/1.4804425
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) X-ray diffraction patterns for MgAlO nanoparticles. (b) Dark field TEM image and (c) HRTEM image of 2 at. % Al doped MgO nanoparticle.

Image of FIG. 2.
FIG. 2.

(a) Wide scan x-ray photo-electron spectra for as-prepared and vacuum annealed (at 600 °C for 6 h) 2 at. % Al doped MgO nanoparticles, (b) x-ray photo-electron spectra of O 1s peak of (i-iii) as-prepared and (iv-vi) vacuum annealed pure, 2 and 5 at. % Al doped MgO, respectively (Colored lines inside the main Gaussian peak are fittings to different oxygen coordination.), and (c) oxygen vacancy concentration of as-prepared and vacuum annealed pure, 2 and 5 at. % Al doped MgO.

Image of FIG. 3.
FIG. 3.

(a) loop and (b) saturation magnetization as a function of in MgAlO samples at 300 K. (The dotted line is a guide to the eye.)

Image of FIG. 4.
FIG. 4.

(a) loop (at 300 K) for AP, AA, and VA MgAlO samples (for  = 0.02); (b) as a function of for AP, AA, and VA MgAlO samples. (The solid line shows a spline interpolation of the curve between the measured data points.)

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/content/aip/journal/apl/102/18/10.1063/1.4804425
2013-05-10
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Oxygen vacancy enhanced room temperature magnetism in Al-doped MgO nanoparticles
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/18/10.1063/1.4804425
10.1063/1.4804425
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