1887
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.
Quantitative modeling of the annealing-induced changes of the magnetotransport in alloys
Rent:
Rent this article for
USD
10.1063/1.2786556
/content/aip/journal/jap/102/7/10.1063/1.2786556
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/7/10.1063/1.2786556

Figures

Image of FIG. 1.
FIG. 1.

Effect of the model parameters on the temperature dependence of the resistivity based on the model parameters used for the sample annealed at . (a) Influence of disorder: varied from ; (b) influence of half-width of the Gaussian distribution of acceptor energies varied from ; (c) influence of the acceptor density varied from .

Image of FIG. 2.
FIG. 2.

Effect of the model parameters on the calculated magnetoresistance at 20 and for the as grown sample. (a) Influence of disorder: varied from (fixed parameters: ; ); (b) influence of the exchange integral: varied from (fixed parameters: ; ); (c) influence of the residual coupling between Mn ions: varied from (fixed parameters: ; ).

Image of FIG. 3.
FIG. 3.

Effect of the model parameters on the calculated magnetoresistance of the sample annealed at . (a) Influence of disorder: varied from (fixed parameters: ; ); (b) influence of the exchange integral: varied from (fixed parameters: ; ); (c) influence of the residual coupling between Mn ions: varied from (fixed parameters: ; ).

Image of FIG. 4.
FIG. 4.

Comparison between experimental data and calculated values of the logarithmic resistivity vs for the as grown samples and the samples annealed at different temperatures. Symbols denote the experimental values while full lines are calculated curves. Inset: anomaly of the measured resistivity in the vicinity of the Curie temperature for the two metallic samples.

Image of FIG. 5.
FIG. 5.

Comparison of experimental and calculated values of the magnetoresistance vs field at various temperatures between 20 and for the as grown sample. Symbols denote the experimental values while full lines are calculated curves. Model parameters used are given in Table I.

Image of FIG. 6.
FIG. 6.

Comparison of experimental and calculated values of the magnetoresistance vs field at various temperatures between 20 and for the sample annealed at . Symbols denote the experimental values while full lines are calculated curves. Model parameters used are given in Table I.

Image of FIG. 7.
FIG. 7.

Comparison of experimental and calculated values of the magnetoresistance vs field at various temperatures between 20 and for the sample annealed at . Symbols denote the measured values while full lines are calculated curves. Model parameters used are given in Table I.

Image of FIG. 8.
FIG. 8.

Comparison of experimental and calculated values of the magnetoresistance vs field at various temperatures between 20 and for the sample annealed at . Symbols denote the measured values while full lines are calculated curves. Model parameters used are given in Table I.

Image of FIG. 9.
FIG. 9.

Comparison of experimental and calculated values of the magnetoresistance vs field at various temperatures between 40 and for the sample annealed at . Symbols denote the experimental values while full lines are calculated curves. Model parameters are given in Table I.

Image of FIG. 10.
FIG. 10.

Comparison of experimental and calculated values of the magnetoresistance vs field at different temperatures between 20 and for the sample annealed at . Symbols denote the experimental values while full lines are calculated curves. In the calculation a temperature dependence of and was assumed: pairs of and of ; ; ; ; and were used for temperatures in ascending order from . Additional model parameters are given in Table I.

Tables

Generic image for table
Table I.

Model parameters.

Loading

Article metrics loading...

/content/aip/journal/jap/102/7/10.1063/1.2786556
2007-10-11
2014-04-24
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quantitative modeling of the annealing-induced changes of the magnetotransport in Ga1−xMnxAs alloys
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/7/10.1063/1.2786556
10.1063/1.2786556
SEARCH_EXPAND_ITEM