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Enhanced ferromagnetism and glassy state in phase separated La0.95Sr0.05MnO3 + δ
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) X-ray diffraction patterns of La0.95Sr0.05MnO3 at room temperature, (b) SEM image, and (c) HRTEM image, inset shows SAED pattern.

Image of FIG. 2.
FIG. 2.

The temperature dependence of ZFC-FC effect of magnetization in presence of different applied fields. (a) H = 100 Oe; and (b) H = 5 T. The inset exhibits the temperature dependence of FC magnetization in a selective temperature region in presence of field 100 Oe.

Image of FIG. 3.
FIG. 3.

(a) Arrott plots (H/M vs M2 ) using dc magnetization isotherms vs applied field taken at different temperatures; and (b) the temperature dependence resistivity (ρ) without and with an applied magnetic field of 0.5 T, inset shows the magnetoresistance at 40 K and at 110 K.

Image of FIG. 4.
FIG. 4.

(a) The magnetization as a function of magnetic field at different temperatures and (b) extended view of the same at 5 K up to ±1 T.

Image of FIG. 5.
FIG. 5.

Temperature dependence of ZFC magnetization at different applied fields (H). The inset shows the plot of freezing temperature (T f) against H 2/3, following the AT relation.

Image of FIG. 6.
FIG. 6.

The temperature dependence of the reference magnetization M ref (solid line), the magnetization M (open circle), and ΔM = M − M ref (closed circle), corresponding to measurements on heating after ZFC with and without stop at 35 K.

Image of FIG. 7.
FIG. 7.

Time dependence of isothermal remnant magnetization at 25 K and 10 K, respectively. The solid lines represent the fit with Eq. (1).

Image of FIG. 8.
FIG. 8.

Magnetic phase diagram of present granular La0.95Sr0.05MnO3+δ system describing richness of the system.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced ferromagnetism and glassy state in phase separated La0.95Sr0.05MnO3 + δ