Fe nanochain and nanowires encapsulation in isolated finite thickness ZnO nanotube and its bundle systemsRostam Moradian, Masoud Shahrokhi, Saied Amjaian, Jamileh Samadi and Reza IjadiEur. Phys. J. Appl. Phys., 67 2 (2014) 20406DOI: https://doi.org/10.1051/epjap/2014130441