TY - JOUR
T1 - Determining wave vector and material property from the phase-shift of spin-wave propagation
AU - Bao, Mingqiang
AU - Wong, Kin
AU - Khitun, Alexander
AU - Lee, Jooyoung
AU - Hao, Zhibiao
AU - Wang, Kang L.
AU - Lee, Dok Won
AU - Wang, Shan X.
PY - 2008/10/1
Y1 - 2008/10/1
N2 - Different to conventional ferromagnetic resonance methods, we use the phase-shift of spin-wave propagation to investigate spin-wave in conducting ferromagnetic thin films. Spin-wave wave vector (or wave number) k, a key parameter in the study of spin-wave dispersion and propagation, is extracted from the ratio of the phase-shift to the propagation distance and the ratio of the intercepts to the slopes of the plot of frequency square (f2) vs. the bias field (H). The wave vectors calculated by both methods are in good agreement. The in-plane anisotropy field Hk and saturation magnetization MS can also be extracted from the phase-shift map.
AB - Different to conventional ferromagnetic resonance methods, we use the phase-shift of spin-wave propagation to investigate spin-wave in conducting ferromagnetic thin films. Spin-wave wave vector (or wave number) k, a key parameter in the study of spin-wave dispersion and propagation, is extracted from the ratio of the phase-shift to the propagation distance and the ratio of the intercepts to the slopes of the plot of frequency square (f2) vs. the bias field (H). The wave vectors calculated by both methods are in good agreement. The in-plane anisotropy field Hk and saturation magnetization MS can also be extracted from the phase-shift map.
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U2 - 10.1209/0295-5075/84/27009
DO - 10.1209/0295-5075/84/27009
M3 - Article
AN - SCOPUS:79051470359
SN - 0295-5075
VL - 84
JO - Journal de Physique (Paris), Lettres
JF - Journal de Physique (Paris), Lettres
IS - 2
M1 - 27009
ER -