@article{1e099e63f9c64efe90bd2a73d0ddb75e,
title = "Current-perpendicular-to-plane giant magnetoresistance in spin-valve structures using epitaxial Co2 FeAl0.5 Si0.5 /Ag/ Co2 FeAl0.5 Si0.5 trilayers",
abstract = "A current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) spin valve using epitaxial layers of Co2 FeAl0.5 Si 0.5 (CFAS) Heusler alloy as ferromagnetic electrodes is reported. A multilayer stack of Cr/Ag/CFAS/Ag/CFAS/ Co75 Fe25 / Ir22 Mn78 /Ru was deposited on a MgO (001) single crystal substrate. Epitaxial growth of the Cr, Ag, and CFAS layers in the (001) orientation up to the top CFAS layer was confirmed. Large MR ratios of 6.9% at room temperature and 14% at 6 K were observed for the CPP-GMR device. High spin polarization of epitaxial CFAS is the possible reason for high MR ratios.",
author = "T. Furubayashi and K. Kodama and H. Sukegawa and Takahashi, {Y. K.} and K. Inomata and K. Hono",
note = "Funding Information: K.K. would like to thank the National Institute for Materials Science for providing a NIMS junior research assistantship. This work was partly supported by the Grant-in-Aid for Scientific Research (B) No. 20360322, the Grant-in-Aid for Scientific Research in Priority Area “Creation and control of spin current” No. 19048029, and the World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitronics from the Ministry of Education, Culture, Sports, Science and Technology of Japan.",
year = "2008",
doi = "10.1063/1.2990647",
language = "English",
volume = "93",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "12",
}