Resistivity saturation of dilute Ti1-xAlx alloys

Juhn-Jong Lin*, C. Yu, Y. D. Yao

*Corresponding author for this work

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8 Scopus citations


We have measured the resistivities ρ of dilute Ti1-xAlx (x≤0.135) alloys between 7 and 1100 K. We observe that ρ saturates to a constant value 175 μΩ cm at high temperatures (several hundred degrees Kelvin). The variation of the temperature coefficient of resistivity (1/ρ)(dρ/dT) with ρ indicates that the thermal disorder and compositional disorder are equally important in determining the resistivity saturation. This saturation behavior is semiquantitatively understood in terms of the parallel-resistivity formula ρ-1=ρph-1+ρsat-1, where ρph is due to the usual electron-phonon scattering and ρsat represents a constant ''shunt'' resistivity.

Original languageEnglish
Pages (from-to)4864-4867
Number of pages4
JournalPhysical Review B
Issue number7
StatePublished - 15 Aug 1993

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