Heller and Benedek used nuclear magnetic resonance
techniques to determine the critical exponent [beta] of
MnF2 to unprecedented accuracy. This experiment provided
important confirmation that antiferromagnets are like
ferromagnets, which are in turn like fluids, thus giving
impetus to the conviction that critical phenomena should
encompass all these effects.
Primary:
P. Heller and G. B. Benedek, "Nuclear magnetic resonance in
MnF2 near the critical point," Phys. Rev. Letters 8 (1962):
428-432.
P. Heller, "Nuclear-magnetic-resonance studies of critical
phenomena in MnF2. I. Time-average properties," Phys. Rev.
146 (1966): 403-422.
Secondary:
Brush 1983, 253.
Domb 1996, 24.
Heller 1967, 773.