| A study on the ground state in interchain coupled quasi-one-dimensional organic ferromagnets | |
| W. Z. Wang; K. L. Yao | |
| 1997 | |
| Source Publication | Journal of Physics-Condensed Matter
 |
| ISSN | 0953-8984 |
| Volume | 9Issue:32Pages:6931-6940 |
| Abstract | We deal with two neighbouring pi-conjugated organic ferromagnetic chains with a Hamiltonian including the Hubbard on-site electron-electron repulsion and nearest-neighbouring Coulomb repulsion. We take into account the interchain coupling as an interchain electron-transfer term, which is different with respect to different sites in chains. The distribution of charge density, the ferromagnetic order and the stability of the high-spin ground state are studied in detail. It is shown that the nearest-neighbouring Coulomb repulsion leads to inhomogeneous distribution of charge density and spin density with respect to different sites. The interchain coupling results in transfers of charge density and spin density between the main chain and the side radicals. The interchain coupling stabilizes the high-spin ground state while the nearest-neighbouring Coulomb repulsion makes it unstable. |
| description.department | ccast,world lab,beijing 100080,peoples r china. acad sinica,int ctr mat phys,shenyang 110015,peoples r china.;wang, wz (reprint author), huazhong univ sci & technol,dept phys,wuhan 430074,peoples r china |
| Keyword | Hubbard-model |
| URL | 查看原文 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/38132 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | W. Z. Wang,K. L. Yao. A study on the ground state in interchain coupled quasi-one-dimensional organic ferromagnets[J]. Journal of Physics-Condensed Matter,1997,9(32):6931-6940. |
| APA | W. Z. Wang,&K. L. Yao.(1997).A study on the ground state in interchain coupled quasi-one-dimensional organic ferromagnets.Journal of Physics-Condensed Matter,9(32),6931-6940. |
| MLA | W. Z. Wang,et al."A study on the ground state in interchain coupled quasi-one-dimensional organic ferromagnets".Journal of Physics-Condensed Matter 9.32(1997):6931-6940. |
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