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Magnetoresistance and non-Ohmic conductivity of thin platinum films at low temperatures

URN to cite this document:
Hoffmann, H. ; Hofmann, F. ; Schoepe, Wilfried
Date of publication of this fulltext: 20 Dec 2010 14:16


The electrical conductivity of thin Pt films is measured as a function of temperature T, magnetic field B, and electric field E. A logarithmic temperature dependence is observed. The magnetoresistance is positive and anisotropic, increasing as B2/T in small perpendicular fields and logarithmically in high B⊥. The electric field causes the resistance to drop proportional to E2 at low E and ...


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