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Investigating thermal stability of structural defects and its effect on d0 ferromagnetism in undoped SnO2
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10.1063/1.4812382
/content/aip/journal/jap/113/24/10.1063/1.4812382
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/24/10.1063/1.4812382

Figures

Image of FIG. 1.
FIG. 1.

(a) X-ray diffraction patterns as-synthesized and annealed SnO (b)Williamson-Hall plots for measured XRD data of SnO powders.

Image of FIG. 2.
FIG. 2.

(a), (b) TEM micrographs, (c) HRTEM and (d) SAED pattern (shown inset) of TO sample, and (e) TEM micrograph and (f) HRTEM and (g) SAED pattern (shown inset) of TO800 samples.

Image of FIG. 3.
FIG. 3.

Raman spectra of as synthesized and annealed SnO powders.

Image of FIG. 4.
FIG. 4.

Comparison of room temperature PL spectra of (a) TO and (b) TO800. (The band to band transition in TO800 has been marked by red arrow.)

Image of FIG. 5.
FIG. 5.

Comparison of XPS spectra of TO and TO800 powders showing (a)Survey spectrum, (b) Sn 3d core level spectra, (c) O 1s core level spectra.

Image of FIG. 6.
FIG. 6.

(a) M Vs. H curves of as-synthesized and annealed SnO samples at room temperature. (b) ZFC and FC curves of as synthesized SnO sample at 500 Oe, from 4 K to 300 K.

Image of FIG. 7.
FIG. 7.

(a) Comparison of actual temperature dependence of magnetization of TO sample with simulated data. (b) Comparison of M-H loops TO samples at 300 K and 10 K.

Image of FIG. 8.
FIG. 8.

Room temperature EPR spectra of TO, TO400, TO600, and TO800.

Image of FIG. 9.
FIG. 9.

Variation of saturation magnetization and EPR signal intensity (in terms of signal height) in as prepared and samples annealed at different temperatures.

Tables

Generic image for table
Table I.

Comparison of crystallite size and strain values calculated using Williamson-Hall equation.

Generic image for table
Table II.

Effect of annealing on peak positions in Raman spectra of as synthesized and annealed SnO powders.

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/content/aip/journal/jap/113/24/10.1063/1.4812382
2013-06-28
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Investigating thermal stability of structural defects and its effect on d0 ferromagnetism in undoped SnO2
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/24/10.1063/1.4812382
10.1063/1.4812382
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