Photoinduced magnetization in the organic-based magnet Mn(TCNE)x • y(CH2Cl2) -: art. no. 057202

被引：74

作者：

Pejakovic, DA

Kitamura, C

Miller, JS

Epstein, AJ

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA

[3] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.88.057202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Photoinduced magnetization in a magnet based on organic species is reported for the first time. Upon optical excitation in the blue region of spectrum, Mn(tetracyanoethylene)(x) . y(CH2Cl2) (x approximate to 2, y similar to 0.8) exhibits increased magnetic susceptibility at temperatures as high as 75 K, accompanied with photo-induced absorption in the visible and infrared spectral regions. These effects are partially reversible by lower energy visible light and fully reversible by thermal treatment. The results suggest trapping of the photoexcited charge in a metastable state with enhanced exchange interaction.

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