Title :
Theory of tunneling magnetoresistance for epitaxial systems
Author :
Butler, W.H. ; Zhang, X.-G. ; Chshiev, M. ; Vutukuri, S. ; Schulthess, T.C.
Author_Institution :
MINT Center, Alabama Univ., Tuscaloosa, AL, USA
Abstract :
Epitraxial systems in which very large tunneling magnetoresistance (TMR) can be obtained using simple ferromagnetic electrodes such as Co, Fe, and CoFe together with epitaxial crystalline tunneling barriers was discussed in this paper. The TMRs calculated for these systems are much too high to be consistent with the Julliere model using any reasonable definition of electrode polarization.
Keywords :
cobalt; cobalt alloys; ferromagnetic materials; iron; iron alloys; magnetic epitaxial layers; tunnelling magnetoresistance; Co; CoFe; Fe; TMR; electrode polarization; epitaxial systems; ferromagnetic electrodes; tunneling magnetoresistance; Electric resistance; Electrodes; Electrons; Insulation; Iron; Magnetic moments; Polarization; Semiconductor process modeling; Tunneling magnetoresistance; Wave functions;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464215
