Chinese Journal of Computational Physics ›› 2023, Vol. 40 ›› Issue (4): 443-452.DOI: 10.19596/j.cnki.1001-246x.8608
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Shizhu QIAO(), Xiaobo WANG, Guoquan YANG
Received:
2022-08-11
Online:
2023-07-25
Published:
2023-10-13
Shizhu QIAO, Xiaobo WANG, Guoquan YANG. Effect of Magnetization Pinning on Spin Wave Modes in Spin Wave Conduit of Yttrium Iron Garnet[J]. Chinese Journal of Computational Physics, 2023, 40(4): 443-452.
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URL: http://www.cjcp.org.cn/EN/10.19596/j.cnki.1001-246x.8608
图5 (a)周期性边界条件只沿y方向时自旋波在k空间的分布; (b) ky = 0的自旋波的强度; (c) 周期性边界条件只沿z方向时自旋波在k空间的分布; (d) ky = ny·2π/Ly,ny = 0,1,…,4的自旋波的强度((b)中的插图表示不使用周期性边界条件时ky = ny·2π/Ly,ny = 0,1,…,4的自旋波的强度。)
图6 y和z方向都使用周期性边界条件时,kz = nz·2π/Lz,nz = 0、1、…、7且ky = 0的8个自旋波模在不同磁场下的演化(a) B = 0.113 T; (b) B = 0.114 T; (c) B = 0.115 T; (d) B = 0.116 T; (e) B = 0.117 T; (f) B = 0.118 T
图7 周期性边界条件只沿y方向时,自旋波模(a) k0 (kz = 0, ky = 0)在B = 0.117 T时共振; (b) k1 (kz = 1·2π/Lz, ky = 0) 在B = 0.1171 T时共振; (c) k4 (kz = 4·2π/Lz, ky = 0)在B = 0.1153 T时共振。当不使用周期性边界条件时,自旋波模(d) k0和k1在B = 0.116 T时共振; (e) k4在B = 0.1146 T时共振; (f)当不使用周期性边界条件时ky = n·2π/Ly,n = 0、1、…、7且kz = 0的8个自旋波模在B = 0.116 T时的演化
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