Magnetoelectricity and magnetostriction due to the rare-earth moment in TmAl3(BO3)(4)

Article

关键词: ELECTRIC POLARIZATION;    SINGLE-CRYSTALS;    GDFE3(BO3)(4);   

DOI  :  10.1103/PhysRevB.81.220402

来源: SCIE

【 摘 要 】

The magnetic properties, the magnetostriction, and the magnetoelectric effect in the d-electron free rare-earth aluminum borate TmAl3(BO3)(4) are investigated between room temperature and 2 K. The magnetic susceptibility reveals a strong anisotropy with the hexagonal c axis as the hard magnetic axis. Magnetostriction measurements show a large effect of an in-plane field reducing both the a-axis and c-axis lattice parameters. The magnetoelectric polarization change in a and c directions reaches up to 300 mu C/ m(2) at 70 kOe with the field applied along the a axis. The magnetoelectric polarization is proportional to the lattice contraction in magnetic field. The results of this investigation prove the existence of a significant coupling between the rare-earth magnetic moment and the lattice in RAl3(BO3)(4) compounds (R=rare earth). They further show that the rare-earth moment itself will generate a large magnetoelectric effect which makes it easier to study and to understand the origin of the magnetoelectric interaction in this class of materials.

【 授权许可】

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