| Autor: | T. A. Knuuttila, Kim Lefmann, Kirsi Juntunen, Juha Tuoriniemi |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Physics
Condensed matter physics chemistry.chemical_element Condensed Matter Physics Magnetic susceptibility Atomic and Molecular Physics and Optics Rhodium Paramagnetism Dipole chemistry Transition metal Padé approximant Condensed Matter::Strongly Correlated Electrons General Materials Science Spin (physics) |
| Zdroj: | Journal of Low Temperature Physics. 124:271-289 |
| ISSN: | 0022-2291 |
| Popis: | The nuclear spin system of Rh metal has recently been investigated experimentally. No nuclear magnetic ordering was observed in these measurements, in spite of the very low nuclear entropy achieved. To study this system theoretically, we have applied the method of exact diagonalization to a 16 spin I=1/2 fcc cluster with both Ruderman-Kittel and dipolar interactions. In this work, we compare the results of this method with the experimental data and the high temperature expansion results in the paramagnetic state. The high temperature expansions agree with the experimental data down to 1 nK, while the exact diagonalisation results are less accurate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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