| Zugriffsnummer | 18399 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Multifractal properties of critical eigenstates in two-dimensional systems with symplectic symmetry |
| Autor(in); Institution |
Schweitzer, Ludwig; 8.12, Theoretische Physik, PTB-Braunschweig
|
| Quelle/Jahr | Journal of Physics: Condensed Matter: 7 (1995), L281 - L285 |
| ISSN | 0953-8984 |
| DOI | |
| Verlag | Bristol: IOP |
| Klassifikationscode | PACS: 61.43.Hv ; PACS: 71.45.Gm ; PACS: 71.70.Ej ; PACS: 71.30.+h ; PACS: 71.23.An |
| Zusammenfassung | The multifractal properties of electronic eigenstates at the metal-insulator transition of a two-dimensional disordered tight-binding model with spin-orbit interaction are investigated numerically. The correlation dimensions of the spectral measure D̃2 and of the fractal eigenstate D2 are calculated and shown to be related by D2 = 2 D̃2. The exponent η = 0.35 ± 0.05 describing the energy correlations of the critical eigenstates is found to satisfy the relation η = 2 - D2. |
