Control of magnetism at low electric fields in multiferroic 0.58BiFeO3–0.42Bi0.5K0.5TiO3 single crystal near morphotropic phase boundary
Source abstract
Abstract
Electric field ( E ) control of magnetism ( M ) via the converse magnetoelectric (ME) effect in insulating multiferroics is promising in energy-efficient spintronic devices. However, strong ME coupling together with relatively low electric fields for E control of M is still challenging in practical applications. Here we report considerable and reproducible E control of M with E even much lower than the ferroelectric (FE) coercive field ( E C ) at room temperature (RT) in the multiferroic 0.58BiFeO 3–0.42Bi 0.5K 0.5TiO 3 (BF-BKT) single crystals residing in the tetragonal region, but next to the morphotropic phase boundary (MPB). The E controlled M can be substantially suppressed by high magnetic fields ( H). It is revealed that the E controlled M can be rather ascribed to both the E -induced lattice distortion and phase transformation than to FE domain switching in BF-BKT. The weakened converse ME effect at high H is attributed to the H-induced suppression of phase transformation. Our results demonstrate that the converse ME effect mediated by E- sensitive lattice structures in multiferroics near MPB might be promising in achieving ultralow power spintronic devices.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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