Physical and magnetic properties of (Ce1−xNdx)3Al (x = 0.3): Coexisting ferromagnetism and Kondo effect
•(Ce1−xNdx)3Al (x = 0.3) exhibits ferromagnetism and Kondo effect simultaneously.•In fields, it reveals an NFL behavior due to the Nd doping disorder.•(Ce1−xNdx)3Al (x = 0.3) shows the relatively high value of γ (=321 mJ/ mol-Ln K2).•But, lower value of S (T) (~ 10 µV/K) contradicts the strong elect...
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Veröffentlicht in: | Journal of magnetism and magnetic materials 2020-11, Vol.514, p.167184, Article 167184 |
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Sprache: | eng |
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Zusammenfassung: | •(Ce1−xNdx)3Al (x = 0.3) exhibits ferromagnetism and Kondo effect simultaneously.•In fields, it reveals an NFL behavior due to the Nd doping disorder.•(Ce1−xNdx)3Al (x = 0.3) shows the relatively high value of γ (=321 mJ/ mol-Ln K2).•But, lower value of S (T) (~ 10 µV/K) contradicts the strong electronic correlation.•This compound belongs to moderate heavy fermion family.
By means of detailed electrical, magnetic and thermal studies, we illustrate the unusual coexistence of ferromagnetism and Kondo effect for the critical Nd concentration of x = 0.3 in (Ce1−xNdx)3Al. Magnetic susceptibility χ(T) confirms the ferromagnetic character with TC ~ 8 K along with Kondo effect which appears below 35 K. Non-saturating nature of magnetization (M (H)) and Hall resistivity (ρxy (H)) isotherms indicates the Kondo screening. Resistivity ρ (T) curves exhibit nonlinear temperature dependence; ~Tn (0.48 |
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ISSN: | 0304-8853 1873-4766 |
DOI: | 10.1016/j.jmmm.2020.167184 |