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Carrier density dependence of the magnetic properties in iron-doped Bi2Se3 topological insulator
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10.1063/1.4788834
/content/aip/journal/jap/113/4/10.1063/1.4788834
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/4/10.1063/1.4788834

Figures

Image of FIG. 1.
FIG. 1.

Low energy ARPES spectra of Bi1.84− x Fe0.16Ca x Se3 with (a) x = 0, (b) x = 0.02, (c) x = 0.04, (d) x = 0.06. Fermi level moves downwards to the Dirac point with the increase of Ca dopants. (e) EDCs near the Dirac point for x = 0 and (f) x = 0.02. Blue curves are EDCs at k = 0. (g) Hall resistivity as a function of applied magnetic filed. (h) Carrier density as a function of Ca concentration.

Image of FIG. 2.
FIG. 2.

Field cooled temperature dependent dc magnetism with an applied filed of 1KOe for the Bi1.84− x Fe0.16Ca x Se3 crystals along (a) in-plane, (b) out-of-plane, (c) in-plane after normalization, and (d) out-of-plane after normalization.

Image of FIG. 3.
FIG. 3.

The Magnetic hysteresis loops along the in-plane direction at different temperatures for (a) x = 0, (b) x = 0.02 (c) x = 0.04, and (d) x = 0.06.

Image of FIG. 4.
FIG. 4.

The Magnetic hysteresis loops along the in-plane direction at different temperatures after subtracting the diamagnetic signals for (a) x = 0, (b) x = 0.02 (c) x = 0.04, and (d) x = 0.06.

Image of FIG. 5.
FIG. 5.

Comparison of the magnetic hysteresis loops along the out-of-plane and in-plan directions after subtracting the diamagnetic signals for (a) x = 0, (b) x = 0.02 (c) x = 0.04, and (d) x = 0.06.

Tables

Generic image for table
Table I.

Concentrations of doped Ca and Fe and the magnetic moments for different magnetic dopants.

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/content/aip/journal/jap/113/4/10.1063/1.4788834
2013-01-30
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Carrier density dependence of the magnetic properties in iron-doped Bi2Se3 topological insulator
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/4/10.1063/1.4788834
10.1063/1.4788834
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