arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2311.00501cond-mat.mtrl-scicond-mat.str-el
收藏

多畴外延EuPd$_2$薄膜的磁性

Magnetic properties of multi-domain epitaxial EuPd$_2$ thin films

Alfons G. Schuck, Sebastian Kölsch, Adrian Valadkhani, Igor I. Mazin, Roser Valentí, Michael Huth

AI总结:

本文研究分子束外延生长的多畴外延EuPd$_2$薄膜的低温磁性,通过微磁模拟和从头计算量化磁晶各向异性,揭示其源于薄膜诱导的双轴应变。

摘要:

铕金属间化合物由于局域4f电子与离域电子态之间的相互作用,表现出多种不同的基态和异常物理性质。铕也是稀土金属中最活泼的元素,这可能是很少有研究关注铕基薄膜性质的原因。本文研究了通过分子束外延制备的铁磁性EuPd$_2$薄膜的低温磁性。外延(111)取向薄膜在MgO(100)上生长,具有八种不同的畴取向。我们通过微磁模拟分析了低温磁滞行为,明确考虑了多畴形貌,并量化了磁晶各向异性的贡献。通过从头计算,我们将磁各向异性的微观起源追溯到薄膜诱导的双轴应变。

英文摘要:

Europium intermetallic compounds show a variety of different ground states and anomalous physical properties due to the interactions between the localized 4f electrons and the delocalized electronic states. Europium is also the most reactive of the rare earth metals which might be the reason why very few works are concerned with the properties of Eu-based thin films. Here we address the low-temperature magnetic properties of ferromagnetic EuPd$_2$ thin films prepared by molecular beam epitaxy. The epitaxial (111)-oriented thin films grow on MgO (100) with eight different domain orientations. We analyze the low-temperature magnetic hysteresis behavior by means of micromagnetic simulations taking the multi-domain morphology explicitly into account and quantify the magnetic crystal anisotropy contribution. By ab initio calculations we trace back the microscopic origin of the magnetic anisotropy to thin film-induced biaxial strain.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑