Antiferromagnetic ordering and dipolar interactions of YbAlO${}_3$

Abstract

In this paper we report low-temperature magnetic properties of the rare-earth perovskite material YbAlO${}_3$. Results of elastic and inelastic neutron scattering experiment, magnetization measurements along with the crystalline electrical field (CEF) calculations suggest that the ground state of Yb moments is a strongly anisotropic Kramers doublet, and the moments are confined in the $ab$-plane, pointing at an angle of $\phi =\pm 23.5^{\circ }$ to the $a$-axis. With temperature decreasing below $T_{\mathrm{N}}=0.88$ K, Yb moments order into the coplanar, but non-collinear antiferromagnetic (AFM) structure $AxGy$, where the moments are pointed along their easy-axes. In addition, we highlight the importance of the dipole-dipole interaction, which selects the type of magnetic ordering and may be crucial for understanding magnetic properties of other rare-earth orthorhombic perovskites. Further analysis of the broad diffuse neutron scattering shows that one-dimensional interaction along the $c$-axis is dominant, and suggests YbAlO${}_3$ as a new member of one dimensional quantum magnets.

8 pages, 6 figures

References in corpus (4)

• Mantid - Data Analysis and Visualization Package for Neutron Scattering and $\mu SR$ Experiments
• Tomonaga-Luttinger Liquid Behavior and Spinon Confinement in YbAlO${}_3$
• The Cold Neutron Chopper Spectrometer at the Spallation Neutron Source - A Review of the first 8 Years of Operation
• Magnetic ground state of the Ising-like antiferromagnet DyScO${}_3$

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• Magnetic properties of triangular lattice antiferromagnets Ba3RB9O18 (R = Yb, Er)
• Exchange renormalized crystal field excitation in a quantum Ising magnet KTmSe${}_2$
• Low-energy spin dynamics in rare-earth perovskite oxides
• Experimental observation of magnetic dimers in diluted Yb:YAlO${}_3$
• Quasi One-Dimensional Ising-like Antiferromagnetism in the Rare-earth Perovskite Oxide TbScO${}_3$
• Confinement of many-body Bethe strings
• Slow spin dynamics and quantum tunneling of magnetization in the dipolar antiferromagnet DyScO${}_3$
• High-temperature quantum coherence of spinons in a rare-earth spin chain
• Dipolar Ising Model: Phases, Growth Laws and Universality
• Successive magnetic orderings in the Ising spin chain magnet DyNi${}_5$Ge${}_3$
• 1/5 and 1/3 magnetization plateaux in the spin 1/2 chain system YbAlO3
• Low-temperature thermal conductivity of the substrate material YAlO3 and its unconventional sister compound YbAlO3