Spin-orbit scattering effect on electron-electron interactions in disordered metals

Juhn-Jong Lin*, Shih-ying Hsu, J. C. Lue, P. J. Sheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We have measured the low-temperature resistivities of a series of bulk crystalline disordered Ti73-xAl27Snx alloys (x ≲ 5) as well as the sheet resistances of a number of thin ferromagnetic Ni films ( ≈ 120 Å thick) sandwiching an ultrathin Ag or Au ( ≲ 5 Å) layer. The level of impurities (concentration of Sn in the former case, and thickness of Ag or Au in the latter case) is progressively increased in order to enhance the spin-orbit scattering in a controllable manner. The influence of the spin-orbit scattering on the electron-electron interaction effects is studied from the temperature dependence of resistivities (sheet resistance) at low temperatures. We find that the electron-electron interaction contribution to the resistivities (sheet resistances) increases slightly with increasing spin-orbit scattering. Our observation is discussed in terms of the current theoretical concept for the electron-electron interactions in disordered metals.

Original languageEnglish
Pages (from-to)1813-1818
Number of pages6
JournalJournal of Physics and Chemistry of Solids
Volume62
Issue number9-10
DOIs
StatePublished - 10 Sep 2001

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