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Mechanically Tunable Magnetic Properties of Flexible SrRuO3 Epitaxial Thin Films on Mica Substrates
Advanced Electronic Materials ( IF 6.2 ) Pub Date : 2018-01-25 , DOI: 10.1002/aelm.201700522 Jindong Liu 1 , Yu Feng 1 , Rujun Tang 2 , Run Zhao 3 , Ju Gao 3 , Daning Shi 1 , Hao Yang 1
Advanced Electronic Materials ( IF 6.2 ) Pub Date : 2018-01-25 , DOI: 10.1002/aelm.201700522 Jindong Liu 1 , Yu Feng 1 , Rujun Tang 2 , Run Zhao 3 , Ju Gao 3 , Daning Shi 1 , Hao Yang 1
Affiliation
Epitaxial SrRuO3 (SRO) films with BaTiO3 buffer layer are deposited on mica substrates by pulsed laser deposition. The flexible film layers are subsequently prepared by mechanical exfoliation. The impact of mechanical strain on the magnetic properties of SRO is investigated. To control the applied mechanical strain, the prepared SRO films are firmly attached onto convex molds with different radii of curvature. The magnetization measurements are performed on SRO films under different mechanical strains. It is found that the magnetic properties of SRO films, including Curie temperature, saturated magnetic moment, and coercive field, depend strongly on the mechanical strain. The saturated moment can be enhanced from 1.2 to 3.2 µB per Ru by applying a compressive mechanical strain, which is presumably attributed to a spin state transition. The magnetic anisotropy can be varied as well by exerting mechanical compressive or tensile strain. The flexible SRO films on mica substrate with highly tunable magnetic properties show a great potential for novel applications in flexible electronics.
中文翻译:
云母基底上柔性SrRuO3外延薄膜的机械可调磁性能
BaTiO 3的外延SrRuO 3(SRO)膜通过脉冲激光沉积将缓冲层沉积在云母基板上。随后通过机械剥离制备柔性膜层。研究了机械应变对SRO磁性能的影响。为了控制施加的机械应变,将准备好的SRO薄膜牢固地附着到具有不同曲率半径的凸模上。在不同的机械应变下对SRO膜进行磁化测量。发现SRO膜的磁性,包括居里温度,饱和磁矩和矫顽场,在很大程度上取决于机械应变。通过施加压缩机械应变,可以将饱和矩从Ru的每Ru提高到1.2 µB至3.2 µB,这大概归因于自旋态跃迁。磁各向异性也可以通过施加机械压缩应变或拉伸应变而改变。云母衬底上具有高度可调磁性能的柔性SRO膜在柔性电子学中的新应用显示出巨大的潜力。
更新日期:2018-01-25
中文翻译:
云母基底上柔性SrRuO3外延薄膜的机械可调磁性能
BaTiO 3的外延SrRuO 3(SRO)膜通过脉冲激光沉积将缓冲层沉积在云母基板上。随后通过机械剥离制备柔性膜层。研究了机械应变对SRO磁性能的影响。为了控制施加的机械应变,将准备好的SRO薄膜牢固地附着到具有不同曲率半径的凸模上。在不同的机械应变下对SRO膜进行磁化测量。发现SRO膜的磁性,包括居里温度,饱和磁矩和矫顽场,在很大程度上取决于机械应变。通过施加压缩机械应变,可以将饱和矩从Ru的每Ru提高到1.2 µB至3.2 µB,这大概归因于自旋态跃迁。磁各向异性也可以通过施加机械压缩应变或拉伸应变而改变。云母衬底上具有高度可调磁性能的柔性SRO膜在柔性电子学中的新应用显示出巨大的潜力。