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Titolo:
Magnetoresistance behaviour of the ternary stannides CeNi0.86Sn2 and Ce3Ni2Sn7
Autore:
Chevalier, B; Durivault, L; Fernandez, JR; Sal, JCG; Barandiaran, JM; Etourneau, J;
Indirizzi:
ICMCB, CNRS UPR 9048, F-33608 Pessac, France ICMCB Pessac France F-33608ICMCB, CNRS UPR 9048, F-33608 Pessac, France Univ Cantabria, Fac Ciencias, E-39005 Santander, Spain Univ Cantabria Santander Spain E-39005 iencias, E-39005 Santander, Spain Univ Pais Vasco, Fac Ciencias, Bilbao 40080, Spain Univ Pais Vasco Bilbao Spain 40080 co, Fac Ciencias, Bilbao 40080, Spain
Titolo Testata:
JOURNAL OF ALLOYS AND COMPOUNDS
, volume: 323, anno: 2001,
pagine: 435 - 439
SICI:
0925-8388(20010712)323:<435:MBOTTS>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Keywords:
intermetallics; Kondo effects; electronic transport; magnetic measurements;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
6
Recensione:
Indirizzi per estratti:
Indirizzo: Chevalier, B ICMCB, CNRS UPR 9048, Ave Dr A Schweitzer, F-33608 Pessac, France ICMCB Ave Dr A Schweitzer Pessac France F-33608 ssac, France
Citazione:
B. Chevalier et al., "Magnetoresistance behaviour of the ternary stannides CeNi0.86Sn2 and Ce3Ni2Sn7", J ALLOY COM, 323, 2001, pp. 435-439

Abstract

In order to obtain more information on the magnetic phase diagram of thesestannides, we have performed magnetization and magnetoresistance (MR) measurements. The results are summarized as follows: (i) in the paramagnetic range, the negative curvature of the MR = f(mu H-0) curve for CeNi0.86Sn2 reflects the existence of Kondo interactions; for T <8 K, a change of regime appears reminiscent of the onset of ferromagnetic ordering showing that the antiferromagnetic structure of this stannide became easily ferromagnetic under low applied fields; (ii) MR of Ce3Ni2Sn7 is positive for T > 12 K then changes sign showing that the Kondo effect is rather small for T < 12 K: below 7 K MR becomes more negative with decreasing temperature confirming themetamagnetic transition observed at low fields by magnetization measurements. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 05/04/20 alle ore 18:22:12