TY - JOUR
T1 - Synthetic CoFeB/Ru/NiFe free layer on MgO barrier layer for spin transfer switching
AU - Ono, Takuya
AU - Naganuma, Hiroshi
AU - Oogane, Mikihiko
AU - Ando, Yasuo
PY - 2010
Y1 - 2010
N2 - In order to study the application potential of spin transfer switching in magnetic tunnel junctions (MTJs), a synthetic parallelly coupled layered structure such as a hard CoFeB/Ru/soft NiFe layers deposited on a MgO layer is investigated. The magnetic coupling between the layers is maintained · · after post-annealing at 300 °C, while annealing at 350 °C reduces the coupling strength. The observation of spin transfer switching in the junction indicates that parallel-to-antiparallel transition does not occur when the applied current pulse width is in the sub-millisecond range, which is far from the precessional range. This result indicates that spin transfer from NiFe to CoFeB might affect the dynamics of CoFeB magnetization.
AB - In order to study the application potential of spin transfer switching in magnetic tunnel junctions (MTJs), a synthetic parallelly coupled layered structure such as a hard CoFeB/Ru/soft NiFe layers deposited on a MgO layer is investigated. The magnetic coupling between the layers is maintained · · after post-annealing at 300 °C, while annealing at 350 °C reduces the coupling strength. The observation of spin transfer switching in the junction indicates that parallel-to-antiparallel transition does not occur when the applied current pulse width is in the sub-millisecond range, which is far from the precessional range. This result indicates that spin transfer from NiFe to CoFeB might affect the dynamics of CoFeB magnetization.
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U2 - 10.1088/1742-6596/200/6/062019
DO - 10.1088/1742-6596/200/6/062019
M3 - Conference article
AN - SCOPUS:77957062833
SN - 1742-6588
VL - 200
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - SECTION 6
M1 - 062019
ER -