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Low-temperature study of nonlinear transport across oxide grain boundaries
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10.1063/1.1776329
/content/aip/journal/apl/85/4/10.1063/1.1776329
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/4/10.1063/1.1776329

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of resistance measured on the GB and the bulk for sample L36 (a), L24 (b), M36 (c), and M24 (d). Insets: current–voltage curves at low temperatures.

Image of FIG. 2.
FIG. 2.

Temperature dependence of GB conductance below and fits (—) to . Sample L36 GB (∎) and sample L24 GB (엯).

Image of FIG. 3.
FIG. 3.

Nonlinear differential conductance curves of sample L36 (a) and sample L24 (b) below .

Image of FIG. 4.
FIG. 4.

Based on DSB model, original built-in potential in the GB (a) is reduced by oxygen reduction due to the vacancy segregation effect (b).

Tables

Generic image for table
Table I.

List of reduction conditions and carrier concentrations.

Generic image for table
Table II.

Temperature and bias dependence of conductance, and estimated built-in barrier potential at .

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/content/aip/journal/apl/85/4/10.1063/1.1776329
2004-07-23
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low-temperature study of nonlinear transport across oxide grain boundaries
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/4/10.1063/1.1776329
10.1063/1.1776329
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