TY - JOUR
T1 - Non-reciprocal pumping of surface acoustic waves by spin wave resonance
AU - Yamamoto, Kei
AU - Yu, Weichao
AU - Yu, Tao
AU - Puebla, Jorge
AU - Xu, Mingran
AU - Maekawa, Sadamichi
AU - Bauer, Gerrit
N1 - Funding Information:
This work was performed under the Inter-University Cooperative Research Program of the Institute for Materials Research, Tohoku University (Proposal Nos. 19K0007, 20K0033), and was supported by JSPS KAKENHI Grant Numbers JP19K21040, JP20K14369, JP20237075, JP19J21720, JP19H006450, JP20H01865.
Funding Information:
Acknowledgments The authors would like to thank Kazuya Harii, Jun’ichi Ieda, Hidekazu Kurebayashi, and Michiyasu Mori for helpful comments. This work was performed under the Inter-University Cooperative Research Program of the Institute for Materials Research, Tohoku University (Proposal Nos. 19K0007, 20K0033), and was supported by JSPS KAKENHI Grant Numbers JP19K21040, JP20K14369, JP20237075, JP19J21720, JP19H006450, JP20H01865.
Publisher Copyright:
©2020 The Physical Society of Japan.
PY - 2020/11/15
Y1 - 2020/11/15
N2 - We predict that surface acoustic waves are generated preferentially in one direction in a heterostructure of a thin magnetic film on a non-magnetic substrate. The non-reciprocity arises from magneto-elastic coupling and magnetorotation coupling, the former being dominant for YIG=GGG heterostructures. For YIG films thinner than about 100 nm, the surface acoustic wave amplitude is nearly unidirectional at certain angles of the in-plane equilibrium magnetisation. We compute the full magnetic field dependence of the effect for a selected device.
AB - We predict that surface acoustic waves are generated preferentially in one direction in a heterostructure of a thin magnetic film on a non-magnetic substrate. The non-reciprocity arises from magneto-elastic coupling and magnetorotation coupling, the former being dominant for YIG=GGG heterostructures. For YIG films thinner than about 100 nm, the surface acoustic wave amplitude is nearly unidirectional at certain angles of the in-plane equilibrium magnetisation. We compute the full magnetic field dependence of the effect for a selected device.
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U2 - 10.7566/JPSJ.89.113702
DO - 10.7566/JPSJ.89.113702
M3 - Article
AN - SCOPUS:85094180109
SN - 0031-9015
VL - 89
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 11
M1 - 113702
ER -