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Exchange bias and the origin of room-temperature ferromagnetism in Fe-doped NiO bulk samples
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10.1063/1.2832437
/content/aip/journal/jap/103/2/10.1063/1.2832437
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/2/10.1063/1.2832437
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

XRD patterns of bulk samples obtained after annealing treatment at for 4 h and for 6 h, respectively. The inset is the enlarged diffraction line (111) and (200) for samples obtained at given temperatures.

Image of FIG. 2.
FIG. 2.

(a) Temperature dependence of magnetization with ZFC and FC processes for , and (b) hysteresis loops of bulk samples measured at 300 K. The inset is an enlarged part near the central region of the loops.

Image of FIG. 3.
FIG. 3.

(a) Temperature dependence of and of (, 0.03, 0.05, and 0.1) bulk samples, and (b) representative FC hysteresis loops measured at 10 K for (, 0.03, 0.05, and 0.1) samples. The inset is the exchange bias field as a function of the Fe content .

Image of FIG. 4.
FIG. 4.

Training effect of (, 0.03, 0.05, and 0.1) bulk samples. Plotted are the first and the second hysteresis loops at 100 K after 6 kOe field cooling.

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/content/aip/journal/jap/103/2/10.1063/1.2832437
2008-01-22
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Exchange bias and the origin of room-temperature ferromagnetism in Fe-doped NiO bulk samples
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/2/10.1063/1.2832437
10.1063/1.2832437
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