1. 'BLS_RawData.xlsx'
This file contains the experiment results of Brillouin light scattering for the 30 nm thick specimen, which are presented in the Fig.3 and Fig.4(a)

2. 'Fig1_AGFM_RawData.xlsx'
AGFM measured results of 30 nm thick sample are shown in Fig.1.


3. 'Fig1_MH_MuMax_HorIsland.txt' + 'Fig1_MH_MuMax_VerIsland.txt'
The evolution of magnetization (mx along the applied field ) as a function of field for the independently horizontal and vertical islands of 30 nm thickness are calculated by MuMax.
In the paper, we show the average magnetization of these two types of values in the Fig.1.

4. 'Fig1_MH_MuMax_Array.txt'

The magnetization (mx) vs field of the 4*4 units array is calculated by MuMax, as shown in Fig.1 


5. 'Fig2_Demag.txt' + 'Fig2_m.txt'
These two files are the spatial demagnetization field (B_Demag) and spatial magnetization (m) which is calculated using MuMax. Three column data are three component value (x, y and z).
The simulation grid dimension is 362*362 cells so that the number of row in these two files is 131045 (362*362). There are in total 32 possible magnetization configurations for this
five-element array, but here we only present the case with the largest stray field. Present the amptitude of Bx_Demag with scaled color, as depicted in Fig.2(a). Please note that the arrow 
within the element region represents the direction magnetization that is in 'Fig2_m.txt' file, instead of the demagnetization field.

6. 'Fig2_StaticField.xlsx'
The simulated results of the static field. The energy difference (E_tot) of the five-element array of 30 nm thickness is estimated by MuMax and the calculation details of the static field can be found in the paper.


7. 'Fig4_SWmode_frequency_HorIsland.xlsx' + 'Fig4_SWmode_frequency_VerIsland.xlsx'
These two file include the spin-wave frequency as a function of the magnetic field for the independently horizontal and vertical island. Calculate the out-plane magnetization mz at every ps in
MuMax. Resonance frequency and intensity can be obtained by calculating the Fourier transform of mz. 


8. 'Fig5_Internal_field.xlsx'
This file is results of the spatial-profile internal field for the 10 nm and 30 nm thick isolated islands. Calculate the spatial demagnetization field with a 3 kOe external field using MuMax.
Internal field is the sum of the static demagnetizing field and external field.

9. 'Fig6_SW_frequency.xlsx'
Calculate the spin-wave mode frequency and spatial profile by calculating the Fourier transform of mz derived from MuMax. The mz is excited by a spatial- and time-dependent field pulse.