@article{d5416bf83b2d441d91f7fd27141fbb9c,
title = "Structure of epitaxial L10-FePt/MgO perpendicular magnetic tunnel junctions",
abstract = "Perpendicular magnetic tunnel junctions (p-MTJs) with MgO barriers are interesting for high-density information-storage devices. Chemically ordered L10-FePt is a potential electrode due to its large perpendicular magnetocrystalline anisotropy. To-date, a single theoretical study on L1 0-FePt/MgO p-MTJ based on an idealized structure reported significant dependence of spin-dependent tunneling on interface structure. [Y. Taniguchi, IEEE Trans. Magn. 44, 2585 (2008).] We report a structural study of epitaxial L10-FePt(001)[110]//MgO(001)[110]//L10-FePt(001)[110] p-MTJs, focusing on the interfaces using aberration-corrected scanning transmission electron microscopy. Interfaces are semi-coherent, with oxygen atomic-columns of MgO located opposite to iron atomic-columns in L1 0-FePt. Up to three lattice planes show atomic-column steps, the origin of which is attributed to antiphase boundaries in L10-FePt.",
author = "Amit Kohn and Nadav Tal and Ayala Elkayam and Andras Kov{\`a}cs and Dalai Li and Shouguo Wang and Saman Ghannadzadeh and Thorsten Hesjedal and Ward, {Roger C.C.}",
note = "Funding Information: A.K. and S.W. acknowledge the support for this research by a Grant from the Ministry of Science & Technology, P.R.China (China-Israel project with Grant No. 2013DFG13020) and the Ministry of Science & Technology, Israel. The authors are grateful to Keith Belcher for technical support of the MBE growth. R.C.C.W. and T.H. acknowledge the support of the Clarendon Laboratory at Oxford University for the MBE growth of the samples. A.K. acknowledges the support of the Ilse Katz Institute for Nanoscale Science and Technology for the electron microscopy characterization. S.W. acknowledges the financial support of the National Basic Research Program of China (Grant No. 2009CB929203) and the National Natural Science Foundation of China (Grant Nos. 50972163 and 11274371) for the fabrication of the p-MTJs and the magneto-transport measurements.",
year = "2013",
month = feb,
day = "11",
doi = "10.1063/1.4791576",
language = "الإنجليزيّة",
volume = "102",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "6",
}