- מיקרוסקופית אלקטרונים חודרים (TEM): אפיון אנליטי, הולוגרפיית אלקטרונים למיפוי שדות מגנטיים (לורנץ) ופוטנציאל אלקטרוסטטי.
- חומרים מגנטיים להתקני זיכרון: הקשר בין הרכב ומבנה החומרים לתכונות מגנטיות וחשמליות של ההתקן.
פרופ' עמית כהן
ראש מחלקה במחלקה למדע והנדסה של חומרים
תחומי מחקר
10 פרסומים נבחרים
1) A. Kohn, M. Eizenberg and Y. Shacham-Diamand. Copper grain boundary diffusion in electroless deposited cobalt based films and its influence on diffusion barrier integrity for copper metallization. J. Appl. Phys. 94(5) (2003) 3015-3024.
2) A. Kohn, A.K. Petford-Long and T.C. Anthony. Magnetic potential in patterned materials determined using energy-dependent Lorentz phase microscopy. Phys. Rev. B. 72, 014444 (1-11) (2005).
3) T.J. Bromwich, A. Kohn, A.K. Petford-Long, T. Kasama, R.E. Dunin-Borkowski, S.B. Newcomb and C.A. Ross. Remanent magnetization states and interactions in square arrays of 100-nm cobalt dots measured using transmission electron microscopy. J. Appl. Phys. 98, 053909 (1-8) (2005).
4) C. Wang, A. Kohn, S.G. Wang, L.Y. Chang, S.-Y. Choi, A.I. Kirkland, A.K. Petford-Long and R.C.C.Ward. Structural characterization of interfaces in epitaxial Fe/MgO/Fe magnetic tunnel junctions by transmission electron microscopy. Phys. Rev. B, 82, 024428 (1-9) (2010).
5) A. Kohn, J. Dean, A. Kovacs, A. Zeltser, M.J. Carey, D. Geiger, G. Hrkac, T. Schrefl and D. Allwood. Exchange-bias in amorphous ferromagnetic and polycrystalline antiferromagnetic bilayers: Structural study and micromagnetic modelling. J. Appl. Phys. 109, 083924(1-10) (2011).
6) A. Kohn and A. Habibi. Adapting a JEM-2100F for magnetic imaging by Lorentz TEM. JEOL News 47(1) (2012) 17-22.
7) A. Kohn, A. Kov́acs, R. Fan, G.J. McIntyre, R.C.C. Ward and J.P. Goff. The antiferromagnetic structures of IrMn3 and their influence on exchange-bias. Sci. Rep., 3 (2013) 2412.
8) A. Pantzer, A. Vakahy, Z. Eliyahou, G. Levi, D. Horvitz and A. Kohn. Dopant mapping in thin FIB prepared silicon samples by off-axis electron holography. Ultramicroscopy, 138 (2014) 36-45.
9) O. Hazut, B.-C. Huang, A. Pantzer, I. Amit, Y. Rosenwaks, A. Kohn, C.-S. Chang, Y.-P. Chiu and R. Yerushalmi. Parallel p-n junctions across nanowires by one-step ex situ doping. ACS Nano, 8(8) (2014) 8357-8362.
10) D.L. Li, Q.L. Ma, S.-G. Wang, R.C.C. Ward, T. Hesjedal, X.-G. Zhang, A. Kohn, E Amsellem, G Yang, J.L. Liu, J. Jiang, H.X. Wei and X.F. Han. Controlling spin-dependent tunneling by bandgap tuning in epitaxial rocksalt MgZnO films. Sci. Rep., 4 (2014) 7277.