O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
The linewidths of the paramagnetic resonance lines of Fe1+, Fe3+ and Mn2+ in MgO decrease as a function of increasing temperature in the helium range. This decrease appears to result from a motional narrowing of the contribution to the linewidth from dipolar interaction with Fe2+ ions as the Fe2+ relaxation rate becomes comparable with the frequency width of the line studied. © 1972.
O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
Eloisa Bentivegna
Big Data 2022
Kenneth R. Carter, Robert D. Miller, et al.
Macromolecules
R.D. Murphy, R.O. Watts
Journal of Low Temperature Physics