Filters: Date: "1969-12" Collection: ir_uspace
1 - 25 of 3
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
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Mattis, Daniel C. | Existence of two phase transitions in Hubbard model | We solve the Hubbard model, for one electron per atom in a simple cubic structure, using one-particle Green's functions. We determine the accuracy of this calculation to be good by comparison with an exact solution by Lieb and Wu of a one-dimensional limiting case. | Critical temperature | 1969-12 |
| 2 |
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DeTar, Carleton | Multiperipheral dynamics at general momentum transfer | We extend the group-theoretical analysis of the multiperipheral integral equation of Chew, Goldberger, and Low to general momentum transfers. Using a set of variables for the multiparticle phase space analogous to those of Bali, Chew, and Pignotti, we obtain, through the 0(2,1) symmetry, a partial... | Multiperipheral model | 1969-12 |
| 3 |
 |
Mattis, Daniel C. | Switching in magnetite: a thermally driven magnetic phase transition | We have performed a variety of experiments on switching phenomena in a metal oxide, magnetite. Our findings are consistent with Joule microheating which drives the Verwey transition occurring at 119 K. We conclude that considerations of band structure, direct electric-field-induced transitions, tunn... | Negative resistance; Electrical switching; Verwey transition; Joule heating | 1969-12 |
1 - 25 of 3