TY - JOUR
T1 - Electrical detection of microwave assisted magnetization reversal by spin pumping
AU - Rao, Siddharth
AU - Subhra Mukherjee, Sankha
AU - Elyasi, Mehrdad
AU - Singh Bhatia, Charanjit
AU - Yang, Hyunsoo
PY - 2014/3/24
Y1 - 2014/3/24
N2 - Microwave assisted magnetization reversal has been investigated in a bilayer system of Pt/ferromagnet by detecting a change in the polarity of the spin pumping signal. The reversal process is studied in two material systems, Pt/CoFeB and Pt/NiFe, for different aspect ratios. The onset of the switching behavior is indicated by a sharp transition in the spin pumping voltage. At a threshold value of the external field, the switching process changes from partial to full reversal with increasing microwave power. The proposed method provides a simple way to detect microwave assisted magnetization reversal.
AB - Microwave assisted magnetization reversal has been investigated in a bilayer system of Pt/ferromagnet by detecting a change in the polarity of the spin pumping signal. The reversal process is studied in two material systems, Pt/CoFeB and Pt/NiFe, for different aspect ratios. The onset of the switching behavior is indicated by a sharp transition in the spin pumping voltage. At a threshold value of the external field, the switching process changes from partial to full reversal with increasing microwave power. The proposed method provides a simple way to detect microwave assisted magnetization reversal.
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U2 - 10.1063/1.4869488
DO - 10.1063/1.4869488
M3 - Article
AN - SCOPUS:84897432626
VL - 104
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 12
M1 - 122406
ER -