- Turkish Journal of Physics
- Vol: 35 Issue: 1
- The low temperature resistivity of thermally evaporated antiferromagnetic Mn100-X Rux thin films
The low temperature resistivity of thermally evaporated antiferromagnetic Mn100-X Rux thin films
Authors : Francis Kofi Ampong And Francis Boakye
Pages : 23-29
Doi:10.3906/kim-1204-74
View : 12 | Download : 6
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :Electrical resistivity measurements on thermally evaporated Mn100-x Rux thin films (with x = 0.05 at.% Ru and x = 2.5 at.% Ru) have been carried out over the temperature range from 300 to 1.4 K. A behaviour typical of the bulk a-Mn has been observed on the film with x = 0.05 at.% Ru. The Néel point of this specimen is established at 90 \pm 1 K which is typical of the bulk. This Néel point is raised to 100 \pm 1 K with x = 2.5 at.% Ru in a-Mn. A relatively long range magnetic ordering was observed with x = 0.05 at.% Ru in a-Mn indicating that the concentration of Ru has an adverse effect on antiferromagnetism in a-Mn. The low temperature resistivity of the 2.50 at.% Ru in a-Mn can be explained in terms of Kondo scattering.Keywords : Resistivity, spin disorder scattering, kondo scattering