TY - JOUR
T1 - Far-infrared ferromagnetic resonance of magnetic garnet for high frequency electromagnetic sensor
AU - Adachi, Nobuyasu
AU - Uematsu, Daisuke
AU - Ota, Toshitaka
AU - Takahashi, Masanori
AU - Ishiyama, Kazushi
AU - Kawasaki, Katsumi
AU - Ota, Hiroyasu
AU - Arai, Kenichi
AU - Fujisawa, S.
AU - Okubo, Susumu
AU - Ohta, Hitoshi
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported by the Strategic Information and Communications R&D Promotion Programme (SCOPE) of the Ministry of Internal Affairs and Communications of Japan.. The authors would like thank to staff members of the Institute of Molecular Science for FMR measurements at X and Q band.
PY - 2010/6
Y1 - 2010/6
N2 - For the sensor probe of high frequency magnetic field in GHz region, (BiLu)3 Fe5 O12 films were prepared by liquid phase epitaxy technique and ferromagnetic resonances were investigated in high frequency region. Magneto-optical (MO) effect of magnetic garnet was utilized for the imaging sensor of the magnetic field distribution. However, for the application to the characterization of high frequency magnetic field in the GHz frequency region, usual MO measurements are difficult to detect the magnetic filed as the decreasing of the permeability of magnetic garnet. Magnetic resonance is an effective way to induce magnetic moment and enhance the magnetooptical effect in high frequency region of GHz order. In order to understand the possibility of magnetic field sensor of high frequency in detail, far-infrared magnetic resonances were measured at the high frequencies up to 315 GHz in pulsed high magnetic field. Taking account into sensitivity of MO signals and magnetic resonance intensities, magnetooptical method using a garnet film is effective at the frequencies below 100 GHz.
AB - For the sensor probe of high frequency magnetic field in GHz region, (BiLu)3 Fe5 O12 films were prepared by liquid phase epitaxy technique and ferromagnetic resonances were investigated in high frequency region. Magneto-optical (MO) effect of magnetic garnet was utilized for the imaging sensor of the magnetic field distribution. However, for the application to the characterization of high frequency magnetic field in the GHz frequency region, usual MO measurements are difficult to detect the magnetic filed as the decreasing of the permeability of magnetic garnet. Magnetic resonance is an effective way to induce magnetic moment and enhance the magnetooptical effect in high frequency region of GHz order. In order to understand the possibility of magnetic field sensor of high frequency in detail, far-infrared magnetic resonances were measured at the high frequencies up to 315 GHz in pulsed high magnetic field. Taking account into sensitivity of MO signals and magnetic resonance intensities, magnetooptical method using a garnet film is effective at the frequencies below 100 GHz.
KW - Ferromagnetic resonance
KW - Garnet film
KW - High frequency
KW - Magneto-optical effect
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U2 - 10.1109/TMAG.2010.2041328
DO - 10.1109/TMAG.2010.2041328
M3 - Article
AN - SCOPUS:77952851636
SN - 0018-9464
VL - 46
SP - 1986
EP - 1989
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 6
M1 - 5467586
ER -