Title :
Magnetic Tunnel Transistor With Epitaxial Spin Valve Base
Author :
Spitzer, Alexander ; Vigroux, Julien ; Moser, Jürgen ; Bayreuther, Günther
Author_Institution :
Inst. fur Experimentelle und Angewandte Phys., Regensburg Univ.
fDate :
6/1/2007 12:00:00 AM
Abstract :
A magnetic tunnel transistor (MTT) with a full epitaxial Co66 Fe34/Au/Co66Fe34 spin valve base, grown on GaAs, is presented. The layer structure of the system is analyzed by TEM, XPS, and STM. For a bias voltage of 1.1 V, the MTT shows a magneto current ratio of 85% and a transfer ratio of 1.5middot10-6. We ascribe these low values to the, although epitaxial, rough structure of the sample
Keywords :
X-ray photoelectron spectra; cobalt alloys; gold; iron alloys; magnetic tunnelling; scanning tunnelling microscopy; spin valves; transmission electron microscopy; tunnel transistors; Co66Fe34-Au; GaAs; STM; TEM; XPS; epitaxial spin valve base; magnetic tunnel transistor; magneto current ratio; Electrons; Etching; Gold; Iron; Magnetic semiconductors; Magnetic separation; Optical films; Scattering; Spin valves; Substrates; Epitaxial; magnetic tunnel transistor; spin valve;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.893423
