Hexagonal phase stabilization and magnetic orders of multiferroic Lu${}_{1-x}$Sc${}_x$FeO${}_3$

Abstract

Hexagonal LuFeO${}_3$ has drawn a lot of research attention due to its contentious room-temperature multiferroicity. Due to the unstability of hexagonal phase in the bulk form, most experimental studies focused on LuFeO${}_3$ thin films which can be stabilized by strain using proper substrates. Here we report on the hexagonal phase stabilization, magnetism, and magnetoelectric coupling of bulk LuFeO${}_3$ by partial Sc-substitution of Lu. First, our first-principles calculations show that the hexagonal structure can be stabilized by partial Sc substitution, while the multiferroic properties including the noncollinear magnetic order and geometric ferroelectricity remain robustly unaffected. Therefore, Lu${}_{1-x}$Sc${}_x$FeO${}_3$ can act as a platform to check the multiferroicity of LuFeO${}_3$ and related materials in the bulk form. Second, the magnetic characterizations on bulk Lu${}_{1-x}$Sc${}_x$FeO${}_3$ demonstrate a magnetic anomaly (probable antiferromagnetic ordering) above room temperature, $\sim 425-445$ K, followed by magnetic transitions in low temperatures ($\sim 167-172$ K). In addition, a magnetoelectric response is observed in the low temperature region. Our study provides useful information on the multiferroic physics of hexagonal $R$FeO${}_3$ and related systems.

arXiv comment21 pages, 8 figures

References in corpus (14)

• Restoring the density-gradient expansion for exchange in solids and surfaces
• Generalized gradient approximation for solids and their surfaces
• Multiferroicity, The coupling between magnetic and polarization
• Multiferroic materials and magnetoelectric physics: symmetry, entanglement, excitation, and topology
• Room-temperature multiferroic hexagonal LuFeO${}_3$ films
• Bulk magnetoelectricity in the hexagonal manganites and ferrites
• The High Temperature Phase Transitions of Hexagonal YMnO3
• Recent Progress of Multiferroic Perovskite Manganites
• Magnetic Structure and Ordering of Multiferroic Hexagonal LuFeO3
• Multiferroic hexagonal ferrites (h-RFeO${}_3$, R=Y, Dy-Lu): an experimental review
• Magnetic Structure of Hexagonal Mn-doped LuFeO${}_3$
• Cyrstal field splitting and optical band gap of hexagonal LuFeO${}_3$ films
• Structural and electronic origin of the magnetic structures in hexagonal LuFeO${}_3$
• Experimental observation of magnetoelectricity in spin ice Dy${}_2$Ti${}_2$O${}_7$

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