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arXiv · 0707.0507

Incommensurate magnetic structure in the orthorhombic perovskite ErMnO_3

F. Ye·B. Lorenz·Q. Huang·Y. Q. Wang·Y. Y. Sun·C. W. Chu·J. A. Fernandez-Baca·Pengcheng Dai·H. A. Mook
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Abstract

By combining dielectric, specific heat, and magnetization measurements and high-resolution neutron powder diffraction, we have investigated the thermodynamic and magnetic/structural properties of the metastable orthorhombic perovskite ErMnO_3 prepared by high-pressure synthesis. The system becomes antiferromagnetically correlated below 42 K and undergoes a lock-in transition at 28 K with propagation wave vector (0,k_b,0), which remains incommensurate at low temperature. The intercorrelation between the magnetic structure and electric properties and the role of the rare earth moment are discussed.

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F. Ye, B. Lorenz, Q. Huang, Y. Q. Wang, Y. Y. Sun, C. W. Chu, J. A. Fernandez-Baca, Pengcheng Dai, H. A. Mook. 2007-08-02. Incommensurate magnetic structure in the orthorhombic perovskite ErMnO_3. https://doi.org/10.1103/physrevb.76.060402

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