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Negative magnetoresistance in boron-doped nanocrystalline diamond films
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10.1063/1.3195045
/content/aip/journal/jap/106/3/10.1063/1.3195045
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/3/10.1063/1.3195045
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The temperature dependence of the resistance of the boron-doped diamond films grown on quartz plotted on a log-log scale. The samples differ from each other in their boron concentration, which increases when going from to . The of and are 1.8 and 2.2 K, respectively.

Image of FIG. 2.
FIG. 2.

The log-linear plot of the of samples and . Inset: The vs temperature plot of on a log-log scale. Here, is the sample conductivity. The dashed line corresponds to the linear fit.

Image of FIG. 3.
FIG. 3.

The Arrhenius plots of samples and (inset). Good linear fits were obtained in the temperature range between 20 and 1.2 K.

Image of FIG. 4.
FIG. 4.

The magnetoresistance of sample for temperatures between (a) 0.4 and 1.4 K and (b) 1.6 and 3 K. NMR stands for negative magnetoresistance.

Image of FIG. 5.
FIG. 5.

The magnetoresistance for sample measured between 0.5 and 2.5 K. NMR stands for negative magnetoresistance.

Image of FIG. 6.
FIG. 6.

The temperature dependence of the fields at which the crossover happens for sample . The dashed line corresponds to the fit of the values by using a temperature dependence similar to that empirically found for the superconducting critical field.

Image of FIG. 7.
FIG. 7.

The data for sample , taken at 0.5 K, plotted as a function of on a semilogarithmic scale.

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/content/aip/journal/jap/106/3/10.1063/1.3195045
2009-08-14
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Negative magnetoresistance in boron-doped nanocrystalline diamond films
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/3/10.1063/1.3195045
10.1063/1.3195045
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