Persistent Currents on Networks
| Autor: | M. Pascaud, Gilles Montambaux |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 82:4512-4515 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.82.4512 |
| Popis: | We develop a method to calculate persistent currents and their spatial distribution (and transport properties) on graphs made of quasi-1D diffusive wires. They are directly related to the field derivatives of the determinant of a matrix which describes the topology of the graph. In certain limits, they are obtained by simple counting of the nodes and their connectivity. We relate the average current of a disordered graph with interactions and the noninteracting current of the same graph with clean 1D wires. A similar relation exists for orbital magnetism in general. |
| Databáze: | OpenAIRE |
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