标题： 高度晶格失配外延SmN的电子性质调制 显示英文标题

标题： Tuning of electronic properties in highly lattice-mismatched epitaxial SmN

摘要： 我们证明，在生长过程中通过控制合成参数可以有效地调节外延SmN薄膜的电子特性。通过仔细调整这些参数，我们能够将SmN从绝缘铁磁态驱动到铁磁金属态。然而，即使在导电性最好的样品中，也未观察到之前报道的超导性的迹象，直到0.35 K。我们讨论了这些薄膜中缺乏超导性的可能情况，并考察了这对该材料中基本配对机制的影响。这些发现为外延工程多功能材料开辟了一条新途径，使得能够实现多种电子相（如铁磁性和金属性）的单片集成，而无需通常与不同材料异质外延生长相关的晶格失配和应变。 显示英文摘要

摘要： We demonstrate that the electronic properties of epitaxial SmN thin films can be effectively tuned during growth by controlling the synthesis parameters. By carefully adjusting these parameters, we are able to drive SmN from an insulating ferromagnetic state to a ferromagnetic metallic state. However, no signatures of previously reported superconductivity were observed down to 0.35 K, even in the most conductive samples. We discuss possible scenarios for the absence of superconductivity in these films and examine implications for the underlying pairing mechanism in this material. These findings open a new pathway for the epitaxial engineering of multifunctional materials, enabling the monolithic integration of diverse electronic phases, such as ferromagnetism and metallicity, without the lattice mismatch and strain typically associated with heteroepitaxial growth of dissimilar materials.