Improvement in CPP-GMR read head sensor performance using [001]-oriented polycrystalline half-metallic Heusler alloy Co2FeGa0.5Ge0.5 and CoFe bilayer electrode oleh Dolly Taparia, Taisuke Sasaki, Tomoya Nakatani, Hirofumi Suto, Yoshio Miura, Zehao Li, Varun Kumar Kushwaha, Kazuumi Inubushi, Shinto Ichikawa, Katsuyuki Nakada, Tomoyuki Sasaki, Seiji Mitani, Yuya Sakuraba