Table 1 Parameters to estimate the DW energy

From: Correlation of the Dzyaloshinskii–Moriya interaction with Heisenberg exchange and orbital asphericity

Temperature

Ms (MA/m)

KU (MJ/m3)

A (pJ/m)

∆ (nm)

KD (10 kJ/m3)

σ0 (mJ/m2)

300

1.06

0.83±0.01

5.85±0.1

2.7±0.1

9.9±0.4

8.80±0.4

200

1.22

1.26±0.01

7.76±0.1

2.5±0.1

9.82±2.0

12.5±0.3

150

1.28

1.37±0.01

8.81±0.1

2.5±0.1

9.82±2.0

13.9±0.2

100

1.33

1.60±0.20

9.22±0.1

2.4±0.2

9.15±2.0

15.4±0.2

  1. ∆, the domain wall anisotropy (KD), and the Bloch-type DW energy (σ0) values obtained from the best fitting of Hn(H x )/[Hsw(Hx=0)] vs H x /H K plots using the extended droplet model. KD is DW anisotropy energy, representing the magnetostatic energy difference between Bloch DW and Néel DW41. The values are comparable with previous reported values in ref. 28. Ms values were measured using a superconducting quantum interference device magnetometer. Details about estimation of A are given in Supplementary Note 3.
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