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Magnetic, transport and thermal studies in the zero magnetization alloy Nd0.75Ho0.25Al2
Ist Teil von
Journal of physics. Conference series, 2009-03, Vol.150 (4), p.042045
Ort / Verlag
Bristol: IOP Publishing
Erscheinungsjahr
2009
Quelle
EZB Electronic Journals Library
Beschreibungen/Notizen
The result of dc and ac magnetization, heat capacity and magneto-resistance measurements in the polycrystalline and single crystal samples at the stoichiometry, Nd0.75Ho0.25Al2, are presented. Magnetic compensation between the antiferromagnetically coupled Nd and Ho moments in nominal zero field, and the field induced reorientation of the Nd/Ho moments in H 5 kOe are observed to happen at the same temperature for H ∥ [100], [110] and [111] directions. The ac magnetization data also appear to imprint the field-induced moment reversal process in polycrystalline as well as in a single crystal sample (for H ∥ [100]). Intriguingly, the magneto-resistivity data in H 10 kOe show three sign reversals below Tc.