2,118 research outputs found
Can Society Promise Health?
From his standpoint as educator, Dr. Millis draws on an analogy between universal education and universally available medical care as an indicator of the discrepancy between national expectation and national accomplishment. He relates these insights to the principle of individual responsibility
Interface ordering and phase competition in a model Mott-insulator--band-insulator heterostructure
The phase diagram of model Mott-insulator--band-insulator heterostructures is
studied using the semiclassical approximation to the dynamical-mean-field
method as a function of thickness, coupling constant, and charge confinement.
An interface-stabilized ferromagnetic phase is found, allow the study of its
competition and possible coexistence with the antiferromagnetic order
characteristic of the bulk Mott insulator.Comment: 5 pages, 3 figures, manuscript revised, results unchange
On the Critical Behavior of the Uniform Susceptibility of a Fermi Liquid Near an Antiferromagnetic Transition with Dynamic Exponent
We compute the leading behavior of the uniform magnetic susceptibility,
, of a Fermi liquid near an antiferromagnetic transition with dynamic
exponent . Our calculation clarifies the role of triangular ``anomaly''
graphs in the theory and justifies the effective action used in previous work
\cite{Hertz}. We find that at the critical point of a two dimensional
material, with and
nonuniversal constants. For reasonable band structures we find that in a
weak coupling approximation is small and positive. Our result suggests that
the behavior observed in the quantum critical regime of underdoped high-
superconductors are difficult to explain in a theory.Comment: 12 pages, uuencoded Postscript fil
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