TY - JOUR
T1 - Effect of distance between a magnet layer and an excitation antenna on the nonreciprocity of magnetostatic surface waves
AU - Kasahara, Kenji
AU - Nakayama, Masaki
AU - Ya, Xiaorui
AU - Matsuyama, Kimihide
AU - Manago, Takashi
PY - 2017/1
Y1 - 2017/1
N2 - We investigated the effect of the distance between a magnetic layer and an excitation antenna on the nonreciprocity of magnetostatic surface waves (MSSWs), using devices with various thicknesses of the SiO2 layer (tSiO2) to isolate an antenna from a permalloy layer. The nonreciprocity of MSSWs increases with increasing tSiO2. This increase in MSSW nonreciprocity is caused by an increase in the ratio of the MSSW excitation efficiency of the out-of-plane component of a microwave field to that of the in-plane component of a microwave field. Thus, we found that the nonreciprocity of MSSWs can be controlled by a very simple method.
AB - We investigated the effect of the distance between a magnetic layer and an excitation antenna on the nonreciprocity of magnetostatic surface waves (MSSWs), using devices with various thicknesses of the SiO2 layer (tSiO2) to isolate an antenna from a permalloy layer. The nonreciprocity of MSSWs increases with increasing tSiO2. This increase in MSSW nonreciprocity is caused by an increase in the ratio of the MSSW excitation efficiency of the out-of-plane component of a microwave field to that of the in-plane component of a microwave field. Thus, we found that the nonreciprocity of MSSWs can be controlled by a very simple method.
UR - http://www.scopus.com/inward/record.url?scp=85007426091&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85007426091&partnerID=8YFLogxK
U2 - 10.7567/JJAP.56.010309
DO - 10.7567/JJAP.56.010309
M3 - Article
AN - SCOPUS:85007426091
VL - 56
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 1
M1 - 010309
ER -