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Magnetic Field Effect and Dielectric Anomalies at the Spin Reorientation Phase Transition of GdFe3(BO3)4
F. Yen, B. Lorenz, Y. Y. Sun +3
GdFe3(BO3)4 exhibits a structural phase transition at 156 K, antiferromagnetic order of the Fe3+ moments at 36 K followed by a spin reorientation phase transition at 9 K. The reori…
Coupling of Magnetic Order, Ferroelectricity, and Lattice Strain in Multiferroic Rare Earth Manganites
B. Lorenz, C. R. dela Cruz, F. Yen +3
Multiferroic rare earth manganites attracted recent attention because of the coexistence of different types of magnetic and ferroelectric orders resulting in complex phase diagrams…
Low temperature dielectric anomalies in HoMnO_3: The complex phase diagram
F. Yen, C. R. dela Cruz, B. Lorenz +4
The dielectric constant of multiferroic hexagonal HoMnO_3 exhibits an unprecedented diversity of anomalies at low temperatures (1.8 K< T <10 K) and under external magnetic fields r…
Strong spin-lattice coupling in multiferroic HoMnO: Thermal expansion anomalies and pressure effect
C. dela Cruz, F. Yen, B. Lorenz +4
Evidence for a strong spin-lattice coupling in multiferroic HoMnO_3 is derived from thermal expansion measurements along a- and c-axis. The magnetoelastic effect results in sizable…