1. Phase Diagram of YbZnGaO4 in Applied Magnetic Field
- Author
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Casey Marjerrison, Jeffrey W. Lynn, David Graf, Alexander Chernyshev, Yang Zhao, Zhenzhong Shi, Sara Haravifard, Andrey Podlesnyak, Yaohua Liu, Guangyong Xu, William Steinhardt, Sachith Dissanayake, Nicholas P. Butch, and P. A. Maksimov
- Subjects
Field (physics) ,Magnetometer ,FOS: Physical sciences ,Neutron scattering ,01 natural sciences ,010305 fluids & plasmas ,law.invention ,symbols.namesake ,Condensed Matter - Strongly Correlated Electrons ,law ,0103 physical sciences ,Atomic physics. Constitution and properties of matter ,010306 general physics ,Materials of engineering and construction. Mechanics of materials ,Phase diagram ,Physics ,Condensed matter physics ,Strongly Correlated Electrons (cond-mat.str-el) ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Magnetic field ,Magnetic anisotropy ,Phase space ,symbols ,TA401-492 ,cond-mat.str-el ,Hamiltonian (quantum mechanics) ,QC170-197 - Abstract
Recently, Yb-based triangular-lattice antiferromagnets have garnered significant interest as possible quantum spin-liquid candidates. One example is YbMgGaO4, which showed many promising spin-liquid features, but also possesses a high degree of disorder owing to site-mixing between the non-magnetic cations. To further elucidate the role of chemical disorder and to explore the phase diagram of these materials in applied field, we present neutron scattering and sensitive magnetometry measurements of the closely related compound, YbZnGaO4. Our results suggest a difference in magnetic anisotropy between the two compounds, and we use key observations of the magnetic phase crossover to motivate an exploration of the field- and exchange parameter-dependent phase diagram, providing an expanded view of the available magnetic states in applied field. This enriched map of the phase space serves as a basis to restrict the values of parameters describing the magnetic Hamiltonian with broad application to recently discovered related materials.
- Published
- 2021