کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1804247 1024645 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The competition between CDW and SDW in quasi-one-dimensional organic magnetic polymer with interchain coupling interaction
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
The competition between CDW and SDW in quasi-one-dimensional organic magnetic polymer with interchain coupling interaction
چکیده انگلیسی

Based on a theoretical model proposed for interchain-coupled quasi-one-dimensional organic magnetic polymer, the effects of the interchain couplings and electron–electron interactions on the charge density wave (CDW) and spin density wave (SDW) that exist in the system are studied. It is found that the amplitude of the SDW along the main chain will decrease with increasing of the oscillatory term of the interchain couplings in the system, which is unfavorable to the ferromagnetic ground state of the system. Moreover, with different interchain couplings, there will all exist a critical value of the inter-site electron–electron Coulomb repulsion, and at this value, the system will experience a transformation from strong SDW state to strong CDW one, which will weaken the mediating function of the antiferromagnetic SDW along the main chain. As a result, the ferromagnetic correlation intensity between the spins of the side radicals will be affected and consequently the stability of the ferromagnetic state in the system will be weakened.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 316, Issue 1, September 2007, Pages 44–48
نویسندگان
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