Piano S, De Santis A, Bobba F, Giubileo F, Longobardi M, Di Bartolomeo A, Polichetti M, Scarfato A, Zola D, Vecchione A, Cucolo A M
Physics Department 'E R Caianiello', University of Salerno, Via S. Allende, 84081 Baronissi (SA), Italy. Laboratorio Regionale SUPERMAT, CNR-INFM, Via S. Allende, 84081 Baronissi (SA), Italy. School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK.
J Phys Condens Matter. 2009 Jun 24;21(25):254205. doi: 10.1088/0953-8984/21/25/254205. Epub 2009 May 29.
The fabrication and characterization of superconducting and ferromagnetic heterostructures is an open field due to the fundamental interest in the physics of the coexistence of these two competing orders and their possible applications in the spintronics industry. In this paper we present structural, electrical and magnetic characterization for the single La(0.7)Ca(0.3)MnO(3) (LCMO) thin layer, La(0.7)Ca(0.3)MnO(3)/YBa(2)Cu(3)O(7-x) (LCMO/YBCO) bilayers and the LCMO/YBCO/LCMO trilayers. In particular, we show a detailed magnetic characterization of the LCMO thin films by means of low temperature magnetic force microscopy. We discuss the different dynamics of the magnetic domains observed, depending on the substrate induced strain and on the film thickness.
由于对这两种相互竞争的序共存的物理特性有着根本的兴趣，以及它们在自旋电子学工业中可能的应用，超导和铁磁异质结构的制备与表征是一个开放的领域。在本文中，我们展示了对单层La(0.7)Ca(0.3)MnO(3)（LCMO）薄膜、La(0.7)Ca(0.3)MnO(3)/YBa(2)Cu(3)O(7-x)（LCMO/YBCO）双层膜以及LCMO/YBCO/LCMO三层膜的结构、电学和磁学表征。特别地，我们通过低温磁力显微镜对LCMO薄膜进行了详细的磁学表征。我们讨论了所观察到的磁畴的不同动力学，这取决于衬底诱导应变和薄膜厚度。
