Abstract
Focusing on La2-xSrxCuO4, we study the stripe structure by the self-consistent mean-field theory of the Hubbard model. By introducing the realistic Fermi surface topology, the SDW-gapped insulator is changed to metallic. The solitonic features of the stripe structure and the contribution of the mid-gap states are presented. We consider the band dispersion, the local density of states, the spectral weight, and the optical conductivity, associated with the solitonic structure. These results may provide important information for the experimental research of the stripe structure, such as the angle-resolved photoemission experiments. The "Fermi surface" shape is changed depending on the ratio of the incommensurability δ and the hole density nh. In real space, only the stripe region is metallic when δ/nh is large.
| Original language | English |
|---|---|
| Pages (from-to) | 4020-4031 |
| Number of pages | 12 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 68 |
| Issue number | 12 |
| Publication status | Published - Dec 1999 |
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Keywords
- High T cuprates
- Hubbard model
- Spectral weight
- Stripe structure
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Electronic structure of stripes in two-dimensional Hubbard model. / Ichioka, Masanori; Machida, Kazushige.
In: Journal of the Physical Society of Japan, Vol. 68, No. 12, 12.1999, p. 4020-4031.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electronic structure of stripes in two-dimensional Hubbard model
AU - Ichioka, Masanori
AU - Machida, Kazushige
PY - 1999/12
Y1 - 1999/12
N2 - Focusing on La2-xSrxCuO4, we study the stripe structure by the self-consistent mean-field theory of the Hubbard model. By introducing the realistic Fermi surface topology, the SDW-gapped insulator is changed to metallic. The solitonic features of the stripe structure and the contribution of the mid-gap states are presented. We consider the band dispersion, the local density of states, the spectral weight, and the optical conductivity, associated with the solitonic structure. These results may provide important information for the experimental research of the stripe structure, such as the angle-resolved photoemission experiments. The "Fermi surface" shape is changed depending on the ratio of the incommensurability δ and the hole density nh. In real space, only the stripe region is metallic when δ/nh is large.
AB - Focusing on La2-xSrxCuO4, we study the stripe structure by the self-consistent mean-field theory of the Hubbard model. By introducing the realistic Fermi surface topology, the SDW-gapped insulator is changed to metallic. The solitonic features of the stripe structure and the contribution of the mid-gap states are presented. We consider the band dispersion, the local density of states, the spectral weight, and the optical conductivity, associated with the solitonic structure. These results may provide important information for the experimental research of the stripe structure, such as the angle-resolved photoemission experiments. The "Fermi surface" shape is changed depending on the ratio of the incommensurability δ and the hole density nh. In real space, only the stripe region is metallic when δ/nh is large.
KW - High T cuprates
KW - Hubbard model
KW - Spectral weight
KW - Stripe structure
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UR - http://www.scopus.com/inward/citedby.url?scp=0033270443&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0033270443
VL - 68
SP - 4020
EP - 4031
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 12
ER -