J.I. Espeso

Magnetic ground state of CeNi1-xCux : A calorimetric investigation

We present a detailed specific heat study of the CeNi

Transport and magnetic properties of RxR′1−xNi5 (R, R′ = Ce, Pr AND Nd): The effect of comptition between rare earth magnetism

_{1-x}

Cluster model with random anisotropy for hysteresis jumps in CeNi1-xCux alloys

Cu

Magnetic phase diagram of superantiferromagnetic TbCu2 nanoparticles

_{x}

Crystallographic study and magnetic structures of CeNixPt1-x and diluted related compounds

series in a large temperature range of 0.2 K to 300 K. The analysis of these data, considering also previous neutron scattering, magnetic characterization and

Magnetic properties of a new series of Nd-based compounds NdNi1−xCux

\mu

The spin-glass-like phase in the CeNi1-xCux system

SR results, allows us to present a convenient description of the system as inhomogeneous on the nanometric scale. Two regimes are detected in the compositional range depending on the dominant RKKY or Kondo interactions. We propose that the long-range magnetic order at low temperatures is achieved by a percolative process of magnetic clusters that become static below the freezing temperature

Thermal expansion in CexY1−xNi0.8Pt0.2

T_{f}

Theoretical models for a complex magnetic system: The case of CeNi1-xCux

. In this scenario the existence of a Quantum Critical Point at the magnetic-nonmagnetic crossover must be discarded.

Long-range magnetic order, spin-glass and evanescence of the magnetism in strongly correlated Ce-based compounds

Abstract The crystallography, electrical resistivity, magnetic susceptibility and magnetisation of the CexPr1−xNi5, CexNd1−xNi5 and PrxNd1−xNi5 compounds are presented. The evolution from a magnetic order in NdNi5 to the non magnetic state in PrNi5 (singlet ground level) and CeNi5 (intermediate valence) is discussed. The Curie temperature of NdNi5 decreases proportionally to the amount of substituting Pr or Ce ions. CEF effects on the singlet ground state on the Pr based compounds are detected by resistivity and susceptibility measurements. The influence of the competition between the intermediate valence and the singlet ground state in CexPr1−xNi5 are also analyzed.