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Possible origin of the resistivity maximum in heavy-fermion systems

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)
The temperature T/sub M/ of the resistivity maximum in CeCu/sub 2/Si/sub 2/ and other heavy-fermion compounds has been assumed by some authors to be directly related to the value of the Kondo temperature T/sub K/ in the same compound. In the present paper, I present evidence that, as is well known for spin-glasses, the Ruderman-Kittel-Kasuya-Yosida interaction between magnetic ions in heavy-fermion systems plays an important or even dominant role in determining the value of T/sub M/. It is argued that across the quasiternary series La/sub 1-x/Ce/sub x/Cu/sub 2/Si/sub 2/ the increase of T/sub K/ with x is small, only doubling in value across the series.
Research Organization:
Institut fuer Experimentalphysik IV, Universitat Bochum, D-4630 Bochum 1, West Germany
OSTI ID:
6285553
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:3; ISSN PRBMD
Country of Publication:
United States
Language:
English