Weak electronic anisotropy in the layered nanolaminate Ti 2 GeC

T. H. Scabarozi, P. Eklund, J. Emmerlich, H. Högberg, T. Meehan, P. Finkel, M. W. Barsoum, J. D. Hettinger, L. Hultman, S. E. Lofland

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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 × 1027 m- 3. The ratio of the a- to c-axis conductivities is small and contrary to theoretical predictions.

Original languageEnglish (US)
Pages (from-to)498-501
Number of pages4
JournalSolid State Communications
Volume146
Issue number11-12
DOIs
StatePublished - Jun 2008

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

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