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Charge and spin dynamics in nanorods
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10.1063/1.3152780
/content/aip/journal/apl/94/23/10.1063/1.3152780
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/23/10.1063/1.3152780
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Dark and photoconductance plotted as vs . Straight lines are fits to Arrhenius law. A discontinuity at 190 K is to be noticed, in view of a marked discontinuous increase in conductance at the transition temperature in Cr-doped single crystals.

Image of FIG. 2.
FIG. 2.

Photocurrent decay curves at some chosen temperatures. The decay curves below 190 K (a) were fitted by the double-exponential function, and the complicated decay curves above 200 K (b) appear to have to do with the coexisting metallic and insulating phases.

Image of FIG. 3.
FIG. 3.

(a) Photocurrent decay constants and (b) their fractions as a function of temperature. The short decay constant being independent of temperature indicates that the short time decay can be ascribed to the large lattice relaxation model, and the long decay constant increasing with increasing temperature between 80 and 190 K is compatible with the random local-potential fluctuation model.

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/content/aip/journal/apl/94/23/10.1063/1.3152780
2009-06-10
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Charge and spin dynamics in VO2 nanorods
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/23/10.1063/1.3152780
10.1063/1.3152780
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