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 oxygen deficiency on SrTiO3(001) surface reconstructions
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

(a) Schematic representation of the annealing process using a Pt thin film heater. (b) Color variation after degassing and annealing at 800  °C for 6 h, 12 h, and 24 h. (c) Reversible behavior of O2– ion migration in response to the bias voltage polarity. All photographs were taken after cooling the specimens down to room temperature.

Image of FIG. 2.
FIG. 2.

Sample color dependence of LEED patterns. (a) A photograph of SrTiO3 showing color gradation after annealing at 800  °C for 24 h; it is the same as the rightmost photograph in Fig. 1(b). (b)–(d) LEED patterns obtained in the (b) transparent, (c) blue, and (d) black regions. Each diffraction can be uniquely assigned as a -(), (), and () pattern, respectively. (e)–(g) Simulated LEED patterns of twinned (e) -(), (f) (), and (g) -() periodicities.

Image of FIG. 3.
FIG. 3.

Typical STM images of (a) -(), (b) (), and (c) -() reconstructed surfaces obtained in separate specimens. Scanning parameters are as follows: (a) the tunneling current (It) of 30 pA and sample bias voltage () of +1.5 V at 77 K, (b) , at room temperature, and (c) , at room temperature. All images were acquired in the area of . Insets show each FFT-transformed image obtained on 25 × 25 nm2, and red arrows indicate the surface unit vectors of each periodicity.


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of oxygen deficiency on SrTiO3(001) surface reconstructions