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Author  |
Bauer, E.; Hauser, R.; Galatanu, A.; Michor, H.; Hilscher, G.; Sereni, J.; Berisso, M.G.; Pedrazzini, P.; Galli, M.; Marabelli, F.; Bonville, P. |
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Title |
Non-Fermi-liquid behavior of YbCu5-xAlx |
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Journal Article |
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Year |
1999 |
Publication |
Physical Review B |
Abbreviated Journal |
Phys. Rev. B |
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Volume |
60 |
Issue |
2 |
Pages |
1238-1246 |
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Abstract |
A valency change in YbCu5-xAlx from nu approximate to 2.2(x=0) to nu=3(x=2) causes a magnetic instability near a critical concentration x(cr)approximate to 1.5 Alloys in the vicinity of x(cr) exhibit typical non-Fermi-liquid properties like a negative logarithmic contribution to the specific heat or substantial deviations of the electrical resistivity from a T-2 behavior. Both pressure and alloying in this series bring about a strong reduction of the Kondo temperature T-K; the crystal-held interaction and the interatomic exchange gain therefore importance and magnetic order becomes possible beyond x(cr). |
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ISSN |
0163-1829 |
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ISI:000081563800070 |
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Call Number |
BT @ hernan @ |
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301 |
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