TY - JOUR
T1 - Highly sensitive magnetic field sensing using magnetization dynamics in yttrium iron garnet single-crystal thin films
AU - Koda, Tetsunori
AU - Muroga, Sho
AU - Endo, Yasushi
N1 - Funding Information:
ACKNOWLEDGMENT The authors would like to thank GRANOPT Co., Ltd., for their support of Bi-YIG single-crystal thin films. This work was supported by JSPS KAKENHI under Grant JP18K14114.
Publisher Copyright:
© 1965-2012 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - We have studied the phase change of magnetization dynamics in Bi-doped yttrium iron garnet (YIG) single-crystal thin films for a possible application of magnetic sensing. By introducing the dual-mixer time-difference method and the appropriate design of waveguide, the obtained maximum phase change was 50°/Oe. This would be acceptable for the resolution for a small magnetic field detection, such as magnetocardiogram signals. Thus, this technique using YIG is a promise candidate for the highly sensitive magnetic field sensing.
AB - We have studied the phase change of magnetization dynamics in Bi-doped yttrium iron garnet (YIG) single-crystal thin films for a possible application of magnetic sensing. By introducing the dual-mixer time-difference method and the appropriate design of waveguide, the obtained maximum phase change was 50°/Oe. This would be acceptable for the resolution for a small magnetic field detection, such as magnetocardiogram signals. Thus, this technique using YIG is a promise candidate for the highly sensitive magnetic field sensing.
KW - Dual-mixer time-difference method (DMTD)
KW - magnetization dynamics
KW - sensor
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U2 - 10.1109/TMAG.2019.2895470
DO - 10.1109/TMAG.2019.2895470
M3 - Article
AN - SCOPUS:85067823847
SN - 0018-9464
VL - 55
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 7
M1 - 8660417
ER -