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1965 - 1966
High-resolution work on magnetic systems
The time scale for magnetic measurements is fairly short
compared to the time scale needed for fluid systems to come
to equilibrium, and from a theoretical point of view
magnetic systems were more amenable to modeling, but they
still present important experimental obstacles to the study
of critical phenomena. Even nominally pure pairs of
samples can differ markedly in their critical points, and
one must always find ways to subtract out the lattice and
electronic contributions to the specific heat before
arriving at the magnetic contribution. Teaney and his
colleagues obtained results for MnF2 and RbMnF3 which were
regarded as invaluable in establishing the shape and
sharpness of the transition for magnetic systems with
resolution sufficient to test theories of critical
phenomena.
Primary:
D. T. Teaney, "Specific-heat singularity in MnF2," Phys.
Rev. Letters 14 (1965): 898-900.
D. T. Teaney, V. L. Moruzzi, B. E. Argyle, "Critical point
of the cubic antiferromagnet RbMnF3," J. Appl. Phys. 37
(1966): 1122-1123.
Secondary:
Heller 1967, 790.
--Karl Hall
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