Commensurate-Incommensurate Magnetic Phase Transition in Magnetoelectric Single Crystal LiNiPO${}_4$

Abstract

Neutron scattering studies of single-crystal LiNiPO${}_4$ reveal a spontaneous first-order commensurate-incommensurate magnetic phase transition. Short- and long-range incommensurate phases are intermediate between the high temperature paramagnetic and the low temperature antiferromagnetic phases. The modulated structure has a predominant antiferromagnetic component, giving rise to satellite peaks in the vicinity of the fundamental antiferromagnetic Bragg reflection, and a ferromagnetic component giving rise to peaks at small momentum-transfers around the origin at $(0,\pm Q,0)$. The wavelength of the modulated magnetic structure varies continuously with temperature. It is argued that the incommensurate short- and long-range phases are due to spin-dimensionality crossover from a continuous to the discrete Ising state. These observations explain the anomalous first-order transition seen in the magnetoelectric effect of this system.

References in corpus (4)

• Formation of a magnetic soliton lattice in copper metaborate
• Field-induced Commensurate-Incommensurate phase transition in a Dzyaloshinskii-Moriya spiral antiferromagnet
• Phase Structure and Universality in Two-Dimensional Disordered Quantum Antiferromagnets
• Heat capacity of mesoscopically disordered superconductors:implications to MgB${}_2$

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