TY - JOUR
T1 - Magnon excitation of CoFe/Al-oxide/CoFe ferromagnetic tunnel junctions
AU - Murai, J.
AU - Ando, Y.
AU - Daibou, T.
AU - Yaoita, K.
AU - Han, H. F.
AU - Miyazaki, T.
N1 - Funding Information:
This research is supported by the Storage Research Consortium, Regional Consortium Project (NEDO) and Grant-in-Aides for Scientific Research from the Ministry of Education, Science, Sports and Culture of Japan.
PY - 2001
Y1 - 2001
N2 - Inelastic-electron-tunneling (IET) spectroscopy has been applied, to investigate the magnon-induced inelastic tunneling process for Ta/N 80Fe20/Cu/Ni80Fe20/IrMn/Co 75Fe25/Al-oxide/Co75Fe25/Ni 80Fe20/Ta ferromagnetic tunnel junctions. For the junction with the oxidation time, t0x = 40 s, which is the exact time to oxidize the 8 A Al, the subtraction spectrum of the IET spectra between the parallel and anti-parallel magnetization configurations clearly showed two peaks at + 3 and + 16 mV showed, On the other hand, the spectrum for the junction with tox = 120 s showed a broad, peak at around 1.8.mV and a plateau at zero-bias. This was caused by the change of the correlation, length of magnon inelastic excitation due to the over oxidation of the bottom electrode.
AB - Inelastic-electron-tunneling (IET) spectroscopy has been applied, to investigate the magnon-induced inelastic tunneling process for Ta/N 80Fe20/Cu/Ni80Fe20/IrMn/Co 75Fe25/Al-oxide/Co75Fe25/Ni 80Fe20/Ta ferromagnetic tunnel junctions. For the junction with the oxidation time, t0x = 40 s, which is the exact time to oxidize the 8 A Al, the subtraction spectrum of the IET spectra between the parallel and anti-parallel magnetization configurations clearly showed two peaks at + 3 and + 16 mV showed, On the other hand, the spectrum for the junction with tox = 120 s showed a broad, peak at around 1.8.mV and a plateau at zero-bias. This was caused by the change of the correlation, length of magnon inelastic excitation due to the over oxidation of the bottom electrode.
KW - Interface structure
KW - Magnons
KW - Transport properties
KW - Tunneling
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U2 - 10.1016/S0304-8853(00)01105-7
DO - 10.1016/S0304-8853(00)01105-7
M3 - Article
AN - SCOPUS:33748682939
VL - 226-230
SP - 922
EP - 923
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - PART I
ER -