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A Generic Sacrificial Layer for Wide-Range Freestanding Oxides with Modulated Magnetic Anisotropy
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-04-12 , DOI: 10.1002/adfm.202111907
Huining Peng 1 , Nianpeng Lu 2, 3 , Shuzhen Yang 1 , Yingjie Lyu 1 , Zhiwei Liu 4, 5 , Yifan Bu 4 , Shengchun Shen 1 , Mingqiang Li 6 , Zhuolu Li 1 , Lei Gao 2 , Sicheng Lu 1 , Meng Wang 1 , Hui Cao 7 , Hua Zhou 8 , Peng Gao 6, 9 , Hanghui Chen 4, 10 , Pu Yu 1, 11
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-04-12 , DOI: 10.1002/adfm.202111907
Huining Peng 1 , Nianpeng Lu 2, 3 , Shuzhen Yang 1 , Yingjie Lyu 1 , Zhiwei Liu 4, 5 , Yifan Bu 4 , Shengchun Shen 1 , Mingqiang Li 6 , Zhuolu Li 1 , Lei Gao 2 , Sicheng Lu 1 , Meng Wang 1 , Hui Cao 7 , Hua Zhou 8 , Peng Gao 6, 9 , Hanghui Chen 4, 10 , Pu Yu 1, 11
Affiliation
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Freestanding oxide nanomembranes have promising applications because of their novel electronic states and flexible crystalline structures. Several materials have been developed as sacrificial layers to exfoliate thin films from substrates via wet-etching. However, these materials face great challenges in terms of either complicated crystalline structures or corrosive solutions. Here, a new sacrificial material, SrCoO2.5, is presented, which can be coherently grown with wide-range strains and crystalline orientations and is also soluble in eco-friendly solutions such as acetic acid, vinegar, and even carbonated drinks. With SrCoO2.5 as the sacrificial layer, high-quality freestanding ferromagnetic SrRuO3 membranes are achieved from wide-range epitaxial strains and different crystalline orientations. By investigating the evolution of the magnetic properties of these samples, it is discovered that epitaxial strain causes a distinct modification of the magnetic anisotropy of (001)pc-oriented SrRuO3 samples, while its influence on the (110)pc and (111)pc samples is insignificant. This study not only demonstrates the freestanding SrRuO3 as a promising material for flexible spintronic devices, but also offers a great opportunity to engineer a wide range of strained and oriented complex oxides for novel freestanding electronics using this newly developed sacrificial material.
中文翻译:
具有调制磁各向异性的宽范围独立氧化物的通用牺牲层
独立式氧化物纳米膜因其新颖的电子态和灵活的晶体结构而具有广阔的应用前景。已经开发了几种材料作为牺牲层,以通过湿法蚀刻从基板上剥离薄膜。然而,这些材料在复杂的晶体结构或腐蚀性溶液方面都面临着巨大的挑战。在这里,展示了一种新的牺牲材料 SrCoO 2.5,它可以在大范围的应变和晶体取向下连贯地生长,并且还可以溶解在醋酸、醋甚至碳酸饮料等环保溶液中。以SrCoO 2.5作为牺牲层,高质量的独立铁磁SrRuO 3膜是由大范围的外延应变和不同的晶体取向实现的。通过研究这些样品的磁性演变,发现外延应变导致(001)pc取向的SrRuO 3样品的磁各向异性发生明显变化,而其对(110)pc和(111)样品的影响pc样品是微不足道的。这项研究不仅证明了独立式 SrRuO 3作为柔性自旋电子器件的一种有前途的材料,而且还提供了利用这种新开发的牺牲材料为新型独立式电子器件设计各种应变和定向复合氧化物的绝佳机会。
更新日期:2022-04-12
中文翻译:
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具有调制磁各向异性的宽范围独立氧化物的通用牺牲层
独立式氧化物纳米膜因其新颖的电子态和灵活的晶体结构而具有广阔的应用前景。已经开发了几种材料作为牺牲层,以通过湿法蚀刻从基板上剥离薄膜。然而,这些材料在复杂的晶体结构或腐蚀性溶液方面都面临着巨大的挑战。在这里,展示了一种新的牺牲材料 SrCoO 2.5,它可以在大范围的应变和晶体取向下连贯地生长,并且还可以溶解在醋酸、醋甚至碳酸饮料等环保溶液中。以SrCoO 2.5作为牺牲层,高质量的独立铁磁SrRuO 3膜是由大范围的外延应变和不同的晶体取向实现的。通过研究这些样品的磁性演变,发现外延应变导致(001)pc取向的SrRuO 3样品的磁各向异性发生明显变化,而其对(110)pc和(111)样品的影响pc样品是微不足道的。这项研究不仅证明了独立式 SrRuO 3作为柔性自旋电子器件的一种有前途的材料,而且还提供了利用这种新开发的牺牲材料为新型独立式电子器件设计各种应变和定向复合氧化物的绝佳机会。