论文标题
通过膜基量热法研究的多层磁性效应
Magnetocaloric effect in multilayers studied by membrane-based calorimetry
论文作者
论文摘要
我们研究磁性多层，并在表现出近端增强磁性效应的强有磁性层之间结合稀释铁磁间隔物。使用基于纳米膜钙化法的磁力测定法和直接测量的绝热温度变化，我们发现与散装间隔物材料相比，研究多层的磁化效应确实得到了增强。我们开发了研究的三层的现象学数值模型，并发现需要通过弱有限磁性间隔者进行远距离交换相互作用，以充分描述系统的磁性和磁性特性。
We study magnetic multilayers, incorporating dilute ferromagnetic spacers between strongly-ferromagnetic layers exhibiting a proximity-enhanced magnetocaloric effect. Using magnetometry and direct measurements of the adiabatic temperature change based on a nanomembrane-calorimetry, we find that the magnetocaloric effect in the studied multilayer is indeed enhanced compared to that in the bulk spacer material. We develop a phenomenological numerical model of the studied trilayer and find that a long-range exchange interaction through the weakly-ferromagnetic spacer is required to adequately describe the magnetic and magnetocaloric properties of the system.
