Correction to: Effects of dl-alanine fuel and annealing on combustion derived MgFe₂O₄ powder with low carbon content and improved magnetic properties

1 Correction to: Applied Physics A (2021) 127:165 https://doi.org/10.1007/s00339-020-04246-2

In Table 3, second column, the heading was mistyped as, ‘D’. The correct heading is ‘r_A (Å)’.

In Fig. 4, assignment of two peaks as E_g and E_g,sh was missing. This has been corrected in the new figure given below.

Fig. 4

Raman spectra of a as-prepared powders and b powders annealed at 900 °C for 4 h. The measured Raman spectra are shown with (black circles), the de-convoluted peaks are in green, and the fitted line is in red color

Equation (28) and the related text are corrected and should be read as:

Magnetic moments per unit molecule ($\mu$) summarized in Table 8 are calculated from the following expression [21, 27, 43],

$$\mu =\frac{\mathrm{M}{M}_{S}}{{\mu }_{B}{N}_{A}} = \frac{\mathrm{M}{M}_{S}}{5.585}$$

(28)

where M (in SI unit) is the molar mass of MgFe₂O₄, ${M}_{S}$ (in emu/g) is the observed saturation magnetization, Bohr magneton ${\mu }_{B}=9.274\times {10}^{-24} {\mathrm{JT}}^{-1}$, and ${N}_{A}=6.022 \times {10}^{23}$ is Avogadro number.

These corrections will not affect the discussions and conclusion.

The authors apologize for this inconvenience.

The original article has been corrected.