Pregled bibliografske jedinice broj: 978018
Instabilities of weakly correlated electronic gas on a two dimensional lattice
Instabilities of weakly correlated electronic gas on a two dimensional lattice // Zeitschrift für Physik. B, Condensed matter, 103 (1997), 2; 339-342 doi:10.1007/s002570050385 (međunarodna recenzija, članak, znanstveni)
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Naslov
Instabilities of weakly correlated electronic gas on a two dimensional lattice
Autori
Zanchi, Dražen ; Schulz, Heinz J.
Izvornik
Zeitschrift für Physik. B, Condensed matter (0722-3277) 103
(1997), 2;
339-342
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
RENORMALIZATION-GROUP APPROACH ; HUBBARD-MODEL ; CONDUCTORS ; SUPERCONDUCTORS
Sažetak
We use the Kadanoff-Wilson renormalization group to find the instabilities of the two dimensional Hubbard model in the weak coupling limit. Starting from the full bandwidth, we reduce the energy cutoff for fermions and derive the low-energy effective action. If the filling is enough far from one half, the effective low-energy theory is BCS and there exists a mean-field like superconducting instability with D-wave order parameter. Close to the half-filling, the effective low-energy theory is parquet and the dominant fluctuations at the critical temperature are antiferromagnetic.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
