Conductivity and tunneling density of states in granular Cr films

Physical Review B - Condensed Matter and Materials Physics

Volumn 82, Issue 5, 2010, Pages

  Sun, Yu Chen ^a   Yeh, Sheng Shiuan ^a   Lin, Juhn Jong ^a  

^a NATIONAL CHIAO TUNG UNIVERSITY   (Taiwan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 77957335556     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.82.054203     Document Type: Article

References (36)

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34. Using D = 1.4 cm 2 / s, we obtain the thermal diffusion length L T = √ D h/ k B T ≈ 33 / √ T nm in the sample A. Therefore, in terms of the EEI effect, the Cr electrode should be 3D at temperatures above ≈ 1 K. If we insisted in plotting resistance versus temperature for the sample B (D), a dependence R ∞ ln T is observed in essentially the same temperature interval shown in Fig. [Fig.]. However, the measured resistance rise is more than a factor of 3 as could be expected from the 2D EEI and WL effects, taking the sheet resistance listed in Table into calculation.
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