Percolation limited magnetic order in Eu1-xCaxB6 (original) (raw)

The European Physical Journal B, 2005

Abstract

ABSTRACT We report the results of measurements of the low-temperature specific heat C p (T) and the ac susceptibility χ ac (T) in low applied magnetic fields for a series of samples of Eu 1-x Ca x B 6</Subsc ript>. The anomalies in C p (T), together with the results for χ ac (T) and M(H), confirm the onset of phase transitions to long range magnetic order for x > 0.7 and provide evidence that for x ≥ 0.7, the Eu moments, which are captured in large magnetic clusters with magnetic moments of the order of 260 μ B , adopt a spin-glass type ground state. The data set allows to establish the low-temperature [ T,x] phase diagram of this alloy series. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

G. Wigger hasn't uploaded this paper.

Let G. know you want this paper to be uploaded.

Ask for this paper to be uploaded.