Size dependence of the Kondo resistivity in AuFe wires

✍ Scribed by V. Chandrasekhar; P. Santhanam; N.A. Penebre; R.A. Webb; H. Vloeberghs; C. Van Haesendonck; Y. Bruynseraede

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 150 KB
• Volume: 194-196
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)90856-7

✦ Synopsis

We have measured the temperature and magnetic field dependence of the low temperature resistivity of Au wires with dilute ( -50 ppm) Fe impurities as a function of wire width. In contrast to previous experiments, we find an increase in slope of the temperature dependent resistivity Aa(T) as the wire width is decreased. A systematic trend is also evident in the field dependent resistivity Ap(H). We also find an unusual scaling relation between Ap(T) and Ap(H) in our wider samples.