Physics department, Faculty of Science, Taif University, Kingdom of Saudi Arabia
Adv. Mater. Lett., 2014, 5 (1), pp 14-16
DOI: 10.5185/amlett.2013.5486
Publication Date (Web): Dec 28, 2013
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E-mail: maljali@yahoo.com
The S-d exchange interactions in dilute Cu-Mn alloys was studied on concentration (C) varying between 10.5 and 2081.8 ppm of Mn in Cu within the (0.03K–4.2K) temperature range. Using electrical resistivity data on those alloys, the s-d exchange integral (Jsd), which is negative, has calculated to show a clear dependence on (Ln C). This dependence, confirming thus the dominance of Kondo effect below 1000 ppm impurity concentration, but above this concentration, we expected an interference between Kondo effect and spin glass regime, which mean that spin glass regime has to prevail more than Kondo effect.
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