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Current-voltage characteristics of phase separated junction and magnetic tunability
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View: Figures


Image of FIG. 1.
FIG. 1.

curves of the junction at various temperatures. The top inset shows the temperature dependence of the junction resistance at various bias voltages. The bottom left inset displays the schematic of the junction and the electrodes setting. The bottom right inset shows the current difference between the cooling and warming measurements at the bias voltage of .

Image of FIG. 2.
FIG. 2.

[(a) and (b)] Variation of ZFC MR with the bias voltage at different temperatures with an in-plane magnetic field of . (c) Magnetization vs temperature under an in-plane magnetic field of for the FC and ZFC processes. (d) Temperature dependence of MR under a in-plane magnetic field at the bias voltage of for the FC and ZFC processes, respectively. The inset of (d) is the temperature dependence of the difference between and , .

Image of FIG. 3.
FIG. 3.

curves of the junction with an in-plane magnetic field , 5.0, and , successively. The upper left inset is the magnetic field dependence of resistance for LCMO film grown on substrate. The upper right inset is the schematic of the barrier between the COAFM and FM states. The bottom inset shows the schematic of the coexistence of COAFM and FM phases in the junction.

Image of FIG. 4.
FIG. 4.

(a)–(c) are MFM and AFM images of the same area of the sample taken during an isothermal magnetic field sweep at after ZFC. The field values (color scales) of the images in consecutive sequence are (a) and (b) . The scale of the topographic image (c) is . (d) The out-of-plane curve of the LCMO film at .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Current-voltage characteristics of phase separated La0.5Ca0.5MnO3∕Nb–SrTiO3p-n junction and magnetic tunability