FisMat2017 - Submission - View

Abstract's title: Fe intercalation under graphene and hexagonal boron nitride heterostructure grown on Pt(111)
Submitting author: Igor Pis
Affiliation: Elettra-Sincrotrone Trieste
Affiliation Address: Strada Statale 14 - km 163,5 in AREA Science Park 34149 Basovizza, Trieste
Country: Italy
Oral presentation/Poster (Author's request): Oral presentation
Other authors and affiliations: Silvia Nappini (IOM-CNR, Laboratorio TASC) Tevfik Onur Mentes (Elettra - Sincrotrone Trieste) Alessandro Sala (IOM-CNR, Laboratorio TASC) Andrea Locatelli (Elettra - Sincrotrone Trieste) Mattia Cattelan (Department of Chemical Sciences, University of Padua) Stefano Agnoli (Department of Chemical Sciences, University of Padua) Federica Bondino (IOM-CNR, Laboratorio TASC) Elena Magnano (IOM-CNR, Laboratorio TASC)

Metal nanostructures confined between sp2 hybridized 2D materials and their solid substrates are attracting attention for their potential application in new nanotechnologies, such as novel electronic and spintronic devices or nanoreactors. 2D-cover/ferromagnetic-metal/solid-substrate interface can stabilize ultrathin FM films with intriguing electronic structure and magnetic properties. In addition, atoms and molecules can be trapped at the interface between weakly interacting layers, such as h-BN or graphene and Pt(111), where they can further react. Model studies under well-defined conditions are valuable for understanding the fundamental aspects of the new phenomena under 2D covers. Herein, we will focus on thermally induced intercalation of Fe under single layer graphene [1] and mixed in-plane h-BN–graphene [2,3] heterostructures grown on Pt(111) and on the influence of oxygen on the intercalated system. Assets and benefits coming from advanced experimental techniques available at the Elettra synchrotron facility in Trieste will be presented. Basic processes, mechanisms, structural, chemical composition, and magnetic changes accompanying the intercalation process will be discussed on the basis of results obtained by synchrotron radiation experimental techniques, such as high-resolution X-ray photoemission spectroscopy (XPS), microscopy (PEEM), X-ray absorption spectroscopy (XAS) and magnetic circular dichroism (XMCD) [4].

[1]Cattelan, M. et al. The nature of the Fe–graphene interface at the nanometer level. Nanoscale 7, 2450–2460 (2015).
[2] Nappini, S. et al. Formation of a Quasi-Free-Standing Single Layer of Graphene and Hexagonal Boron Nitride on Pt(111) by a Single Molecular Precursor. Adv. Funct. Mater. 26, 1120–1126 (2016).
[3] Nappini, S. et al. On-surface synthesis of different boron–nitrogen–carbon heterostructures from dimethylamine borane. Carbon N. Y. (2017).
[4] Cattelan, M. et al. The magnetization orientation of Fe ultrathin layers in contact with graphene. Phys. Chem. Chem. Phys. 18, 33233–33239 (2016).