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Impact of structural transitions on electron transport at LaAlO3/SrTiO3 heterointerfaces
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10.1063/1.3687706
/content/aip/journal/apl/100/8/10.1063/1.3687706
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/8/10.1063/1.3687706
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Photoluminescence spectra of a STO (001) substrate (as received) and LAO/STO samples deposited at different oxygen pressures. Measurement artifacts from the equipment are marked by a star (*).

Image of FIG. 2.
FIG. 2.

(Color online) (a) and (b) Resistance versus temperature upon cooling and warming with power law fits for (a) LAO/STO deposited at pO2 10−2 mbar and (b) LAO/STO deposited at pO2 10−4 mbar. The α values in both (a) and (b) indicate the power law exponent in that temperature range. (c) and (d) TCR versus temperature highlighting the transitions in the warming curves of the (c) 10−2 and (d) 10−4 mbar sample. The red dotted line in (c) is a guide to the eye of a linear background to the TCR curve.

Image of FIG. 3.
FIG. 3.

(Color online) Evolution of sheet carrier density (top) and electron mobility (bottom) of a LAO/STO sample as a function of temperature during cooling and warming. Transition temperatures observed in Figure 2 are indicated.

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/content/aip/journal/apl/100/8/10.1063/1.3687706
2012-02-21
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Impact of structural transitions on electron transport at LaAlO3/SrTiO3 heterointerfaces
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/8/10.1063/1.3687706
10.1063/1.3687706
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