TY  - JOUR
A1  - Deb, Marwan
A1  - Popova, Elena
A1  - Hehn, Michel
A1  - Keller, Niels
A1  - Petit-Watelot, Sebastien
A1  - Bargheer, Matias
A1  - Mangin, Stephane
A1  - Malinowski, Gregory
T1  - Damping of Standing Spin Waves in Bismuth-Substituted Yttrium Iron Garnet as Seen via the Time-Resolved Magneto-Optical Kerr Effect
T2  - Physical review applied
N2  - We investigate spin-wave resonance modes and their damping in insulating thin films of bismuth-substituted yttrium iron garnet by performing femtosecond magneto-optical pump-probe experiments. For large magnetic fields in the range below the magnetization saturation, we find that the damping of high-order standing spin-wave (SSW) modes is about 40 times lower than that for the fundamental one. The observed phenomenon can be explained by considering different features of magnetic anisotropy and exchange fields that, respectively, define the precession frequency for fundamental and high-order SSWs. These results provide further insight into SSWs in iron garnets and may be exploited in many new photomagnonic devices.
Y1  - 2019
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/48420
SN  - 2331-7019
VL  - 12
IS  - 4
PB  - American Physical Society
CY  - College Park
ER  -