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Hopping conductivity in Cr-doped single crystals
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10.1063/1.1887831
/content/aip/journal/jap/97/9/10.1063/1.1887831
http://aip.metastore.ingenta.com/content/aip/journal/jap/97/9/10.1063/1.1887831

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of the resistivity in Cr-doped samples.

Image of FIG. 2.
FIG. 2.

The dependence of on in Cr-doped samples.

Image of FIG. 3.
FIG. 3.

The dependence of on in Cr-doped samples.

Image of FIG. 4.
FIG. 4.

vs for seven Cr-doped samples with different parameters and . The solid line is the function given by Eq. (5).

Image of FIG. 5.
FIG. 5.

The plots of vs (엯) and (×) in Cr-doped samples.

Tables

Generic image for table
Table I.

The doping levels, the values of the characteristic ( and ), and the transition ( and ) temperatures and the prefactor parameters ( and ) of the Mott and the Shklovskii–Efros VRH conductivity regimes, respectively.

Generic image for table
Table II.

The values of the soft gap , the critical crossover temperatures ( and ) in the Rosenbaum (Ref. 21) and the Shlimak (Ref. 22) models, respectively, the ratio of the left-hand side and the right-hand side of Eq. (14) , the width of the impurity band , the ratio of of the DOS parameters in the Mott (Ref. 17) and the Shklovskii–Efros (Ref. 18) VRH models and the rigid gap .

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/content/aip/journal/jap/97/9/10.1063/1.1887831
2005-04-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Hopping conductivity in Cr-doped β‐FeSi2 single crystals
http://aip.metastore.ingenta.com/content/aip/journal/jap/97/9/10.1063/1.1887831
10.1063/1.1887831
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