Abstract
In order to exemplify our idea that inter-band nesting can favor superconductivity arising electron repulsion in layered, non-Bravais lattices, we have looked into the two-band Hubbard model on a stack of honeycomb lattices with the fluctuation exchange approximation. By systematically varying the band filling and transfers, the inter-band nesting is indeed found to give rise to gap functions that change sign across the bands, with a time-reversal-broken di + id2 intra-band pairing symmetry.
| Original language | English |
|---|---|
| Pages (from-to) | 1437-1439 |
| Number of pages | 3 |
| Journal | Physica B: Condensed Matter |
| Volume | 329-333 |
| Issue number | II |
| DOIs | |
| Publication status | Published - May 2003 |
| Externally published | Yes |
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Keywords
- Electron correlation
- Hubbard model
- Superconductivity
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
Cite this
Effect of inter-band nesting on superconductivity in stacked honeycomb lattices. / Onari, Seiichiro; Kuroki, Kazuhiko; Arita, Ryotaro; Aoki, Hideo.
In: Physica B: Condensed Matter, Vol. 329-333, No. II, 05.2003, p. 1437-1439.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of inter-band nesting on superconductivity in stacked honeycomb lattices
AU - Onari, Seiichiro
AU - Kuroki, Kazuhiko
AU - Arita, Ryotaro
AU - Aoki, Hideo
PY - 2003/5
Y1 - 2003/5
N2 - In order to exemplify our idea that inter-band nesting can favor superconductivity arising electron repulsion in layered, non-Bravais lattices, we have looked into the two-band Hubbard model on a stack of honeycomb lattices with the fluctuation exchange approximation. By systematically varying the band filling and transfers, the inter-band nesting is indeed found to give rise to gap functions that change sign across the bands, with a time-reversal-broken di + id2 intra-band pairing symmetry.
AB - In order to exemplify our idea that inter-band nesting can favor superconductivity arising electron repulsion in layered, non-Bravais lattices, we have looked into the two-band Hubbard model on a stack of honeycomb lattices with the fluctuation exchange approximation. By systematically varying the band filling and transfers, the inter-band nesting is indeed found to give rise to gap functions that change sign across the bands, with a time-reversal-broken di + id2 intra-band pairing symmetry.
KW - Electron correlation
KW - Hubbard model
KW - Superconductivity
UR - http://www.scopus.com/inward/record.url?scp=23044492019&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=23044492019&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(02)02365-7
DO - 10.1016/S0921-4526(02)02365-7
M3 - Article
AN - SCOPUS:23044492019
VL - 329-333
SP - 1437
EP - 1439
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - II
ER -