Alloying experiments on heavy fermion compounds

Steglich, F.; Ahlheim, U.; Schank, C.; Geibel, C.; Horn, S.; Lang, M.; Sparn, G.; Loidl, A.; Krimmel, A.

doi:10.1016/0304-8853(90)90105-Y

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Alloying experiments on heavy fermion compounds

Steglich, F., Ahlheim, U., Schank, C., Geibel, C., Horn, S., Lang, M., et al. (1990). Alloying experiments on heavy fermion compounds. Journal of Magnetism and Magnetic Materials, 84(3), 271-280. doi:10.1016/0304-8853(90)90105-Y.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-D523-F Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-D524-D

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Steglich, F.¹, Author
Ahlheim, U.², Author
Schank, C.², Author
Geibel, C.², Author
Horn, S.², Author
Lang, M.², Author
Sparn, G.², Author
Loidl, A.², Author
Krimmel, A.², Author

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1External Organizations, ou_persistent22
2external, ou_persistent22

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Abstract: This paper is intended to demonstrate the usefulness of controlled alloying for the understanding of heavy-fermion physics: (1) Th-substitution for Ce in CeCu2Si2 emphasizes the dominating role of the dopant-induced strain fields in generating incoherent scattering and pair breaking, (2) replacement of Cu by Ni in Ce(Cu1-xNix)2Ge2 leads to phenomena which are interpreted as derived from a transition between local-moment and itinerant heavy-fermion magnetism, and (3) increasing Cu concentration in UCu4+xAl8-x is accompanied by an antiferromagnetic to nonmagnetic transition near xcr = 1.5 similar to what has been found before for several Ce-based systems. A heavy Fermi-liquid phase with incipient coherence of the quasiparticles is established for x⪆xcr.

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Dates: Date issued: 1990-03-01

Publication Status: Issued

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Identifiers: ISI: A1990DB71200010
DOI: 10.1016/0304-8853(90)90105-Y

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Title: Journal of Magnetism and Magnetic Materials

Source Genre: Journal

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Publ. Info: Amsterdam : North-Holland

Pages: - Volume / Issue: 84 (3) Sequence Number: - Start / End Page: 271 - 280 Identifier: ISSN: 0304-8853
CoNE: https://pure.mpg.de/cone/journals/resource/954925512464