On the Relaxational Properties of a Quantum Dipolar Spin Glasses Model

Gaetano Busiello

Dipartimento di Scienze Fisiche “E.R. Caianiello”, Università di Salerno, Salerno, Italy.

DOI: 10.4236/wjcmp.2012.23020                

Abstract

The dissipative part of the linear magnetic dynamic susceptibility of dipolar spin glasses is considered. Due to the transition of the system (at enough high concentration of the magnetic dipoles) from a paramagnetic phase to magnetic dipolar one, an anomalous temperature dependence of the dissipative part of the magnetic susceptibility is found. Our results are in qualitative agreement with experiments performed on the dipolar-coupled Ising magnet LiHo_xY_1-xF₄.

Keywords

Spin Glasses; Dipolar Systems; Relaxational Properties

Conflicts of Interest

The authors declare no conflicts of interest.

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