Author/Authors :
Scabarozi، نويسنده , , T.H. and Eklund، نويسنده , , P. and Emmerlich، نويسنده , , J. and Hِgberg، نويسنده , , H. and Meehan، نويسنده , , T. and Finkel، نويسنده , , P. and Barsoum، نويسنده , , M.W. and Hettinger، نويسنده , , J.D. and Hultman، نويسنده , , L. and Lofland، نويسنده , , S.E.، نويسنده ,
Abstract :
We have investigated the anisotropy in electronic transport of the layered ternary Ti2GeC by comparing the results of measurements on c -axis oriented epitaxial thin-film and polycrystalline bulk samples. The electrical conductivities, Hall coefficients, and magnetoresistances were analyzed within a multi-band framework. An adequate description of the magnetotransport data on the film with the highest mobility required the use of the explicit field-dependent conductivity tensor with three conduction bands. The analysis indicated that n ≈ p , although with n ≈ 3.5 × 10 27 m − 3 . The ratio of the a - to c -axis conductivities is small and contrary to theoretical predictions.
Keywords :
B. Thin films , A. MAX phase , D. Electronic transport , D. Anisotropy
