有机铁磁体β p-NPNN的拉曼谱研究

有机铁磁体βｐ┐ＮＰＮＮ的拉曼谱研究黄亚彬马国宏张兴堂郭立俊莫育俊（河南大学物理系开封４７５００１）赵见高（中科院物理所北京１０００８０）万美香王海亮（中科院化学所）ＴｈｅＳｔｕｄｙｏｆＯｒｇａｎｉｃＦｅｒｒｏｍａｇｎｅｔｉｃβｐ┐ＮＰＮＮｂｙＲａ...

The Study of Organic Ferromagneticβ p NPNN by Raman Spectrum

Abstract For most of ferromagnetic meterials which have been known, their magnetism comes from metal ions. Since decamethyl ferrocenium tetracylenide was first reported by Miller in 1988, the study of ferromagnetic materials which their magnetism comes from the electron spins of organic compound began to attract much attention. The para nitrophenyl nitronyl nitroxide(P NPNN) of β phase is the first pure organic ferromagnetic compound. Raman spectrum is a strong tool to study molecular structure. When the conditions of environment are changed (for instance, temperature, pressure), the molecular structure of the β p NPNN compound could be changed, especially the temperature lies upper or under its Cure temperature. Up to now, no any report of the Raman spectrum about these materials has been published. In this paper, the Raman spectrum of β p NPNN at room temperature is first reported, and the vibration modes are assigned.