The multiferroic perovskite YFeO3

Abstract

The orthoferrite YFeO3 with orthorhombic perovskite structure (Pnma) has been synthesized by mild hydrothermal method. The temperature-dependent magnetization and hysteresis loops indicate that, due to the superexchange and Dzyaloshinskii-Moriya interactions in the crystals, the Fe spins order antiferromagnetically at the Néel temperature 655 K with a weak ferromagnetic moment. The observation of saturation polarization loops at room temperature and 77 K provide evidence for the ferroelectric character of the polycrystalline samples. Its Curie temperature has been obtained from the temperature dependence of the relative permittivities and thermal analysis. As a result, the structure exhibits simultaneously weak ferromagnetic and ferroelectric behavior.

Structure and magnetic properties of the perovskite YCo0.5Fe0.5O3

“…Yttrium orthoferrite (YFeO 3 ), 6 as one of rare earth iron perovskites, has attracted considerable attention for its potential to be used as materials for magnetic field sensors and magneto-optical data storage devices. 7 YFeO 3 crystallizes in a distorted perovskite structure with an orthorhombic unit cell. Fe 3+ ions are in high-spin states and coupled to six nearest iron neighbors anti-parallelly.…”

Investigation of magnetic property of GdFeO3 single crystal grown in air by optical floating zone technique

“…This signifies the presence of weak ferromagnetism because of canting of the Fe 3+ ions via oxygen ligands [17]. Further the remnant magnetization was found to be temperature independent over the full temperature range which signifies that Fe 3+ spins are not perfectly antiparallel but slightly canted [22]. The coercive field was found to be $75 Oe.…”

Room-temperature multiferroic Bi4YFeTi3O15 thin films of four-layered perovskite

“…As we know, orthoferrite YFeO 3 with perovskite structure (Pnma) exhibits simultaneously ferroelectric and ferromagnetic behavior at room temperature with a ferroelectric Curie temperature of 460 K and a high Néel temperature of 655 K [16,17].…”