@misc{10498/33828, year = {2017}, url = {http://hdl.handle.net/10498/33828}, abstract = {We present a structural and density functional theory study of FexCu1-xSe within the three-dimensional topological insulator Bi2Te3. The FexCu1-xSe inclusions are single-crystalline and epitaxially oriented with respect to the Bi2Te3 thin film. Aberration-corrected scanning transmission electron microscopy and electron energy loss spectroscopy show an atomically sharp FeICu1-xSe/Bi2Te3 interface. The FexCu1-xSe/Bi2Te3 interface is determined by Se-Te bonds and no misfit dislocations are observed, despite the different lattice symmetries and large lattice mismatch of ∼19%. First-principle calculations show that the large strain at the FexCu1-xSe/Bi2Te3 interface can be accommodated by van der Waals-like bonding between Se and Te atoms.}, publisher = {Nature Publishing Group}, title = {Van der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi2Te3}, doi = {10.1038/AM.2017.111}, author = {Ghasemi, Arsham and Kepaptsoglou, Demie and Galindo Riaño, Pedro Luis and Ramasse, Quentin M. and Hesjedal, Thorsten and Lazarov, Vlado K.}, }