论文标题
M型六牛肉液中的铁电性和自旋电流波的增强
Enhanced Ferroelectricity and Spin Current Waves in M-Type Barium Hexaferrite
论文作者
论文摘要
本文报道了具有出色磁性性能的M型硫酸氢钡（BAFE12O19）的固有铁电性和相关的介电性能。具有完全饱和的经典电力极化（P-E）磁滞回路，以及在I-V曲线中的两个非线性逆转电流峰，以及在Curie温度附近的介电常数的巨大变化，都表明自己是足够的实验证据，可以验证BAFE12O19 CERAMIC的铁的铁质。它在108 uc/cm2处保持较大的残余极化，在117 kV/cm处保持合适的强制场。 BAFE12O19陶瓷的温度依赖性介电光谱中的194C和451C处的两个峰被认为是从铁铁向抗抗佛经和抗纤维和抗二极管结构的相变。还观察到常规的强磁磁滞回路。 BAFE12O19陶瓷上的磁性极化是以交替的自旋电流波的形式实现的。在500mt上，在施加的磁场上振幅为23MV的ME耦合电压。这些结合了大型铁电的多种功能响应和强壮的铁磁学揭示了BAFE12O19的出色多表色特征，这将带来很大的机会，可以创建新型的电动设备，并在磁性和电订单之间具有主动耦合效果。
The intrinsic ferroelectricity and related dielectric properties of M-type Barium Hexaferrite (BaFe12O19) with excellent magnetic performance are reported in this paper. A classic electric polarization (P-E) hysteresis loop with full saturation, together with two nonlinear reversal current peaks in the I-V curve and huge change of dielectric constant in the vicinity of Curie temperature, have all demonstrated themselves as sufficient experimental evidences to verify the ferroelectricity of BaFe12O19 ceramics. It holds a large remnant polarization at 108 uC/cm2 and a suitable coercive field at 117 kV/cm. Two peaks at 194C and 451C in the temperature-dependent dielectric spectrum of BaFe12O19 ceramics are considered to be the phase transition from ferro- to antiferro- and antiferro- to para-electric structures. A conventional strong magnetic hysteresis loop was also observed. The magnetically induced polarization upon the BaFe12O19 ceramics was achieved in the form of alternating spin current waves. A ME-coupling voltage with an amplitude of 23mV on an applied magnetic field at 500mT was achieved. These combined multiple functional responses of large ferroelectrics and strong ferromagnetism reveal the excellent multiferroic features of BaFe12O19, which would bring forth the great opportunity to create novel electric devices with active coupling effect between magnetic and electric orders.
