ISSN:
1434-6036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. The magnetic properties of the Zn2 FeV3O11 vanadate, characterized by a disordered distribution of diamagnetic Zn2 + and high-spin Fe3 + ions, are studied using magnetization and electron paramagnetic resonance (EPR) measurements. The dc susceptibility reveals antiferromagnetic interactions between Fe3 + spins with a Curie-Weiss temperature $\Theta = -58(1)$ K, followed by a transition to a frozen, spin-glass-like state at low temperature T f $\approx 2.55$ K, indicating an inhomogeneous magnetic ground state. The temperature variation of the EPR parameters confirms the antiferromagnetic coupling of Fe3 + spins at high temperatures, while a distinct divergence is observed at $T\approx 55$ K. This behavior is attributed to the inherent magnetic inhomogeneity of the system due to antiferromagnetic spin clusters.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epjb/e2004-00093-1
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