| Outline of Annual Research Achievements |
During the past fiscal year, we had published 1 papers in Applied Physics Letters and applied for a domestic patent in Japan. We has developed a new series of Heusler alloys, Co2(Fe1-xTix)Si (CFTS) (0<x<1), which has a merit of high spin-polarization together with high driving force for L21-order even at low annealing temperature. In addition, we has also overcome the difficulty of growing high quality epitaxial ferromagnetic films on Si substrate by using NiAl buffer material and successfully fabricated high performance Si-based CPP-GMR device, which is a great breakthrough for read head sensor application. More importantly, this result can be extended to develop Si-based epitaxial MTJs for next generation gigabyte-class MRAM application.
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