[摘要]：We demonstrated spin-transfer magnetization switching using magnetic tunnel junctions (MTJs) with a full-Heusler alloy Co2FeAl (CFA). We prepared CFA (1.5 nm)/MgO/CoFe (4 nm) ("CFA-free") and CFA (30 nm)/MgO/CoFeB (2 nm) ("CFA-reference") MTJs on a Cr(001) layer. The intrinsic critical current density (J(c0)) of the CFA-free (CFA-reference) MTJ was 29 MA/cm(2) (7.1 MA/cm(2)). The larger J(c0) of the CFA-free MTJ is attributed to the significant enhancement of the Gilbert damping factor (similar to 0.04) of the CFA due to the Cr layer. The J(c0) of the CFA-reference is as small as that reported for typical CoFeB/MgO/CoFeB MTJs. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4710521]
