Local pairing and CDW on a triangular lattice

✍ Scribed by Raimundo R. dos Santos

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 130 KB
• Volume: 194-196
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)91252-1

✦ Synopsis

We study the attractive (i.e., negative-U) Hubbard model on a triangular lattice. Quantum Monte-Carlo simulations indicate the absence of CDW for intermediate couplings, and show that the critical temperature for superconductivity is higher close to half filling, unlike the square lattice.