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Anisotropic spin-driven ferroelectricity and magnetoelectric effect in a Y-type hexaferrite
- Source :
- Applied Physics Letters. 118:142902
- Publication Year :
- 2021
- Publisher :
- AIP Publishing, 2021.
-
Abstract
- We report a systematic study on the magnetic, dielectric, and magnetoelectric (ME) properties of the Y-type hexaferrite (Ba0.4Sr1.6)Zn2(Fe11.3Al0.7)O22 single crystal. The phase diagrams were established by the observed magnetic anomalies under magnetic field and temperature scans for the in-plane and out-of-plane cases. Intrinsic large anisotropy in the magnetodielectric and converse ME effects was revealed. The spin-driven electric polarizations induced in the ab-plane and out-of-plane were found to be closely related to the transverse conical and alternating longitudinal conical spin structures, respectively. The amplitudes of varied magnetization ΔM are about ∼0.128 μB/f.u and ∼0.0178 μB/f.u. in the E oscillating between ±1 MV/m at 100 K, corresponding to the converse ME effect coefficient of ∼3500 ps/m and ∼480 ps/m for the in-plane and out-of-plane cases, respectively. All these results demonstrate the essential and unique spin-order-induced anisotropic ferroelectricity and ME properties in these Y-type hexaferrites.
- Subjects :
- 010302 applied physics
Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
Magnetoelectric effect
02 engineering and technology
Dielectric
021001 nanoscience & nanotechnology
01 natural sciences
Ferroelectricity
Magnetic field
Magnetization
0103 physical sciences
0210 nano-technology
Anisotropy
Single crystal
Spin-½
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........c38afb0e9625a7be8a643baa05bf9b10
- Full Text :
- https://doi.org/10.1063/5.0045273