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

Autor:	P. J. Sheng, Shih-ying Hsu, Juhn-Jong Lin, J. C. Lue
Rok vydání:	2001
Předmět:	Condensed matter physics Ferromagnetism Transition metal Scattering Electrical resistivity and conductivity Impurity Chemistry General Materials Science General Chemistry Electron Thin film Condensed Matter Physics Sheet resistance
Zdroj:	Journal of Physics and Chemistry of Solids. 62:1813-1818
ISSN:	0022-3697
DOI:	10.1016/s0022-3697(01)00113-5
Popis:	We have measured the low-temperature resistivities of a series of bulk crystalline disordered Ti 73− x Al 27 Sn x alloys ( x ≲5) as well as the sheet resistances of a number of thin ferromagnetic Ni films (≈120 A thick) sandwiching an ultrathin Ag or Au (≲5 A) 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::25b158589ea7a519eb9bf089c2f45495 https://doi.org/10.1016/s0022-3697(01)00113-5 Zobrazit plný text záznamu Full Text from ScienceDirect