Exploration of the helimagnetic and skyrmion lattice phase diagram in Cu2OSeO3 using magnetoelectric susceptibility

Abstract

Using SQUID magnetometry techniques, we have studied the change in magnetization versus applied ac electric field, i.e. the magnetoelectric (ME) susceptibility dM/dE, in the chiral-lattice ME insulator Cu2OSeO3. Measurements of the dM/dE response provide a sensitive and efficient probe of the magnetic phase diagram, and we observe clearly distinct responses for the different magnetic phases, including the skyrmion lattice phase. By combining our results with theoretical calculation, we estimate quantitatively the ME coupling strength as λ = 0.0146 meV/(V/nm) in the conical phase. Our study demonstrates the ME susceptibility to be a powerful, sensitive and efficient technique for both characterizing and discovering new multiferroic materials and phases.

14 pages, 4 figures

References in corpus (9)

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Cited by in corpus (19)

• A new class of chiral materials hosting magnetic skyrmions beyond room temperature
• Electric field-induced Skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu2OSeO3
• Multiferroicity and skyrmions carrying electric polarization in GaV4S8
• Dynamical magnetoelectric phenomena of multiferroic skyrmions
• In situ Electric Field Skyrmion Creation in Magnetoelectric Cu${}_2$OSeO${}_3$
• Magnetic skyrmions and skyrmion clusters in the helical phase of Cu${}_2$OSeO${}_3$
• Resonant Elastic X-ray Scattering from the Skyrmion Lattice in Cu${}_2$OSeO${}_3$
• Magnetoelectric effects in the skyrmion host material Cu2OSeO3
• Increased lifetime of metastable skyrmions by doping
• Microwave spectroscopy of the low-temperature skyrmion state in Cu2OSeO3
• Charged skyrmions on the surface of a topological insulator
• Electric field-driven topological phase switching and skyrmion lattice metastability in magnetoelectric Cu${}_2$OSeO${}_3$
• Dissipation processes in the insulating skyrmion compound Cu2OSeO3
• Transverse field muon-spin rotation signature of the skyrmion lattice phase in Cu2OSeO3
• Spin excitations in the skymion host Cu2OSeO3
• Transverse field muon-spin rotation measurement of the topological anomaly in a thin film of MnSi
• Low energy magnon dynamics and magneto-optics of the skyrmionic Mott insulator Cu${}_2$OSeO${}_3$
• Electric Field-Induced Skyrmion Crystals via Charged Monopoles in Insulating Helimagets
• Quintuplet condensation in the skyrmionic insulator Cu2OSeO3 at ultrahigh magnetic fields