Pseudo Spin Valves Using a (112)-textured DO_22 MnGa Fixed Layer

Autor:	Zha, C. L., Dumas, R. K., Persson, J., Mohseni, S. M., Nogués, J., Åkerman, Johan
Rok vydání:	2009
Předmět:	Condensed Matter - Materials Science Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	IEEE Magnetics Letters, 1 , 2500104 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1109/LMAG.2009.2039774
Popis:	We demonstrate pseudo spin valves with a (112)-textured DO_22 MnGa (MnGa) tilted magnetization fixed layer and an in-plane CoFe free layer. Single D0_22 MnGa films exhibit a small magnetoresistance (MR) typically observed in metals. In MnGa/Cu/ CoFe spin valves a transition from a negative (-0.08%) to positive (3.88%) MR is realized by introducing a thin spin polarizing CoFe insertion layer at the MnGa/Cu interface and tailoring the MnGa thickness. Finally, the exchange coupling between the MnGa and CoFe insertion layer is studied using a first-order reversal curve (FORC) technique. Comment: 5 pages, 4 figures, submitted to IEEE Magnetics Letters
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0911.4192 Zobrazit plný text záznamu View this record from Arxiv