Abstract
It is investigated, on the basis of the fluctuation exchange approximation, as to how the shape of the Fermi surface is modified in two-dimensional t-t′-U Hubbard model at half-filling as the strength of the onsite Coulomb interaction U is increased. The antiferromagnetic (AF) correlation length is shown to be enhanced as the Coulomb interaction gets closer to the critical value Uc for the onset of AF order. At the same time, the shape of the renormalized Fermi surface is deformed showing the tendency of nesting near Uc.
| Original language | English |
|---|---|
| Pages (from-to) | 812-813 |
| Number of pages | 2 |
| Journal | Physica B: Condensed Matter |
| Volume | 281-282 |
| DOIs | |
| Publication status | Published - Jun 1 2000 |
| Event | Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn Duration: Aug 24 1999 → Aug 28 1999 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Deformation of Fermi surface due to antiferromagnetic correlation. / Morita, K.; Miyake, K.
In: Physica B: Condensed Matter, Vol. 281-282, 01.06.2000, p. 812-813.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Deformation of Fermi surface due to antiferromagnetic correlation
AU - Morita, K.
AU - Miyake, K.
PY - 2000/6/1
Y1 - 2000/6/1
N2 - It is investigated, on the basis of the fluctuation exchange approximation, as to how the shape of the Fermi surface is modified in two-dimensional t-t′-U Hubbard model at half-filling as the strength of the onsite Coulomb interaction U is increased. The antiferromagnetic (AF) correlation length is shown to be enhanced as the Coulomb interaction gets closer to the critical value Uc for the onset of AF order. At the same time, the shape of the renormalized Fermi surface is deformed showing the tendency of nesting near Uc.
AB - It is investigated, on the basis of the fluctuation exchange approximation, as to how the shape of the Fermi surface is modified in two-dimensional t-t′-U Hubbard model at half-filling as the strength of the onsite Coulomb interaction U is increased. The antiferromagnetic (AF) correlation length is shown to be enhanced as the Coulomb interaction gets closer to the critical value Uc for the onset of AF order. At the same time, the shape of the renormalized Fermi surface is deformed showing the tendency of nesting near Uc.
UR - http://www.scopus.com/inward/record.url?scp=0033885313&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033885313&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(99)00913-8
DO - 10.1016/S0921-4526(99)00913-8
M3 - Conference article
AN - SCOPUS:0033885313
VL - 281-282
SP - 812
EP - 813
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
ER -