论文标题
通过应变效应来设计PRVO3外延氧化薄膜的磁和磁联性特性
Engineering the magnetic and magnetocaloric properties of PrVO3 epitaxial oxide thin films by strain effects
论文作者
论文摘要
结合强相关材料（例如过渡金属氧化物）中的多个自由度将导致引人入胜的磁性和磁性特征。在此，应变效应用于明显调整Prvo3薄膜的磁性和磁性特性。选择适当的厚度和底物使我们能够将强制性磁场从先前在烧结的PVO3散装中观察到的2.4 t大幅降低到0.05 t，从而使PRVO3化合物从几乎柔软的磁铁中产生的压缩薄膜。这与磁矩的明显增强和磁性效应有关，在磁场变化的磁场变化中分别在样品平面上施加了6 t的磁性最大值，大约为4.86 Ub和56.8 j/kg k，在样品平面上施加了低温温度温度范围（3 k）。这项工作强烈表明，利用不同程度的自由度，在纳米级政权中剥削多个不稳定性是一种有前途的策略，用于揭示出意外的阶段，并伴随着氧化物中的磁平衡作用。
Combining multiple degrees of freedom in strongly-correlated materials such as transition-metal oxides would lead to fascinating magnetic and magnetocaloric features. Herein, the strain effects are used to markedly tailor the magnetic and magnetocaloric properties of PrVO3 thin films. The selection of appropriate thickness and substrate enables us to dramatically decrease the coercive magnetic field from 2.4 T previously observed in sintered PVO3 bulk to 0.05 T for compressive thin films making from the PrVO3 compound a nearly soft magnet. This is associated with a marked enhancement of the magnetic moment and the magnetocaloric effect that reach unusual maximum values of roughly 4.86 uB and 56.8 J/kg K in the magnetic field change of 6 T applied in the sample plane at the cryogenic temperature range (3 K), respectively. This work strongly suggests that taking advantage of different degrees of freedom and the exploitation of multiple instabilities in a nanoscale regime is a promising strategy for unveiling unexpected phases accompanied by a large magnetocaloric effect in oxides.
