banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Effect of crystallographic anisotropy on the resistance switching phenomenon in perovskites
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

Typical I-V curves of the three types of YBCO/Ag junctions. Upper left inset: Schematic drawing of the measurement. Bottom right inset: Typical time profile of the applied current.

Image of FIG. 2.
FIG. 2.

(Color online) Comparison of time scales for in-plane and out-of-plane diffusion processes. Initial LRS state represents an oxygen structure around 1 nm in size which is located at x = 0 (filled area); this state is not stable and undergoes the diffusion process. Dotted lines visualize snapshots of such process using one-dimensional diffusion equation for c(x,t) (see text) after 10, 100, and 1000 s in the out-of-plane direction (D c ) and dashed line after 10 s in the in-plane direction (D ab ) from the same initial state. Left inset: Schematic drawing of the YBCO/Ag junctions with contact made: a) only in the c-axis direction – type (i), b) only in the ab-plane direction – type (ii) and c) in both directions – type (iii). Right inset: Typical relaxation curve from LRS back to equilibrium HRS for a junction with a contact only in the c-axis direction. The typical relaxation time constant estimated from the exponential decay fit was about 9 h in qualitative agreement with our oxygen diffusion model. The measurements were done at 100 nA current and ∼1–10 mV voltage biases insufficient to cause any resistance switching. The relaxation times may, however, vary from sample to sample depending on the oxygen vacancy concentration, interface quality, and other factors.


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of crystallographic anisotropy on the resistance switching phenomenon in perovskites