Abstract Based on a theoretical model proposed for quasi-one-dimensional organic polymer ferro-magnet poly-BIPO, the effects of electron-electron interaction and electron-phonon coupling on the spin-density-wave (SDW) state of poly-BIPO system are studied. It is found that the SDW state is the stable ground state of the system, in which the system shows ferromagnetic order. And the larger electron-electron interaction and the smaller electron-phonon coupling will make the SDW state more stable than the nonmagnetic state.
Received: 19 April 1994
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China.
Cite this article:
FANG ZHONG (方忠), LIU ZU-LI (刘祖黎), YAO KAI-LUN (姚凯伦), LI ZAI-GUANG (李再光) EFFECTS OF ELECTRON-ELECTRON INTERACTION AND ELECTRON-PHONON COUPLING ON THE SPIN-DENSITY-WAVE OF QUASI-ONE-DIMENSIONAL ORGANIC POLYMER FERROMAGNETS 1995 Acta Physica Sinica (Overseas Edition) 4 291
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