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Strain effects on magnetic characteristics of ultrathin La0.7Sr0.3MnO3 in epitaxial La0.7Sr0.3MnO3/BaTiO3 superlattices
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10.1063/1.4770485
/content/aip/journal/jap/112/12/10.1063/1.4770485
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/12/10.1063/1.4770485
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

RHEED intensity oscillations of the 3rd period in (LSMO10/BTO6)5. Surface morphology over an area of 3 × 3 μm2 is shown in the inset.

Image of FIG. 2.
FIG. 2.

(a) ω-2θ XRD pattern recorded around the (002) peak of LSMO/BTO superlattices; and (b) the estimated superlattice period as a function of the thickness of LSMO layers. Calculated periods in fully strained and fully relaxed conditions are shown for comparison.

Image of FIG. 3.
FIG. 3.

Two-dimensional reciprocal space mapping of the 12/4 (a) and 4/12 (b) samples around the asymmetric (301) spot. The asterisk in (b) represents the diffraction peak of fully relaxed LSMO.

Image of FIG. 4.
FIG. 4.

(a) Field dependent of magnetic hysteresis loops of LSMO/BTO superlattices measured at 10 K with an applied magnetic field up to 3 kOe. The inset shows the low field portion of hysteresis loops of the 6/10 and 4/12 samples. (b) Temperature dependent ZFC and FC magnetization curves of LSMO/BTO superlattices measured under an applied magnetic field of 100 Oe.

Image of FIG. 5.
FIG. 5.

The temperature dependent resistivity of the 12/4, 10/6, and 8/8 samples, respectively.

Image of FIG. 6.
FIG. 6.

MR as a function of magnetic field H for the 12/4, 10/6, and 8/8 samples measured at 250 K (a), 100 K (b), and 5 K (c), with the magnetic field applied perpendicular to the substrate. The 100 K MR at low fields is shown in the inset of (b). MR as a function of magnetic field H for the 12/4, 10/6, and 8/8 samples measured at 250 K (e), 100 K (d), and 5 K (f), with the magnetic field applied in the plane of the substrate.

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/content/aip/journal/jap/112/12/10.1063/1.4770485
2012-12-26
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Strain effects on magnetic characteristics of ultrathin La0.7Sr0.3MnO3 in epitaxial La0.7Sr0.3MnO3/BaTiO3 superlattices
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/12/10.1063/1.4770485
10.1063/1.4770485
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