Quantum magnetoelectric effect in molecular crystal Dy${}_3$

Abstract

Magnetoelectric properties of a molecular crystal formed by dysprosium triangular clusters are investigated. The effective spin-electric Hamiltonian is derived on the base of developed quantum mechanical model of the cluster spin structure. The magnetoelectric contribution to the free energy of the crystal is calculated. The analysis reveals several distinctive features of the magnetoelectric effect, which are not typical for conventional paramagnetic systems at low temperatures. The peculiarities are explained by the chirality of the dysprosium core of the molecules.

References in corpus (5)

• Topological Insulators
• Spin Chirality in a Molecular Dysprosium Triangle: the Archetype of the Non-Collinear Ising Model
• Electronic Orbital Currents and Polarization in Mott Insulators
• Spin electric effects in molecular antiferromagnets
• Macroscopic quantum dynamics of toroidal moment in Ising-type rare-earth clusters