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Room temperature ferromagnetism in Mn doped TiO2 thin films: Electronic structure and Raman investigations
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10.1063/1.3567938
/content/aip/journal/jap/109/8/10.1063/1.3567938
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/8/10.1063/1.3567938

Figures

Image of FIG. 1.
FIG. 1.

XRD patterns of Ti1−xMnxO2 thin films with 0 ≤ x ≤ 0.15.

Image of FIG. 2.
FIG. 2.

(a) Intensity variation in (101) XRD peak. (b) Dotted line is a guideline to the 2θ value of (200) peak in undoped TiO2 film and arrows show shift in 2θ value of (200) peak with increasing x. Peaks have been shifted here on the y-axis for clarity.

Image of FIG. 3.
FIG. 3.

As-recorded M-H curves of bare quartz substrate and Ti1−xMnxO2 films with x = 0.00 and 0.05. Inset shows linear M-H behavior at low field.

Image of FIG. 4.
FIG. 4.

As-recorded M-H curves of Ti1−xMnxO2 films with x = 0.10 and 0.15. Insets show nonlinear M-H behavior at low field for the two samples.

Image of FIG. 5.
FIG. 5.

Extracted MFM-H curves of Ti1−xMnxO2 films with x = 0.10 and 0.15. Inset shows distinct coercivities of both samples.

Image of FIG. 6.
FIG. 6.

The m vs. T ZFC-FC scans of Ti1−xMnxO2 films with x = 0.10. Inset shows TN ∼ 43 K corresponding to Mn3O4 in 500 Oe applied magnetic field (H).

Image of FIG. 7.
FIG. 7.

XPS of Ti1−xMnxO2 films (a) survey spectra of Ti1−xMnxO2 film with x = 0.10, (b) Ti 2p, (c) O 1s, and (d) Mn 2p core level spectra of Ti1−xMnxO2 films with various Mn concentrations.

Image of FIG. 8.
FIG. 8.

Micro-Raman spectra of Ti1−xMnxO2 films with 0 ≤ x ≤ 0.15 excited with 785 nm laser.

Image of FIG. 9.
FIG. 9.

Micro-Raman spectra of Ti1−xMnxO2 films with 0 ≤ x ≤ 0.15 excited with 514.5 nm laser.

Tables

Generic image for table
Table I.

Lattice parameters of Ti1−xMnxO2 films.

Generic image for table
Table II.

Binding energies of Ti 2p core levels of Ti1−xMnxO2 films.

Generic image for table
Table III.

Binding energies of O 1s core levels of Ti1−xMnxO2 films.

Generic image for table
Table IV.

Binding energies of Mn 2p core levels of Ti1−xMnxO2 films.

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/content/aip/journal/jap/109/8/10.1063/1.3567938
2011-04-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Room temperature ferromagnetism in Mn doped TiO2 thin films: Electronic structure and Raman investigations
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/8/10.1063/1.3567938
10.1063/1.3567938
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