Mössbauer Investigation of the Ferromagnetic Coupling in Copper-Iron Polycyanides
HE Yun1, DAI Yao-Dong2, HUANG Hong-Bo1, A. M. Ali1, LIN Jun1, YU Zhi3, XIA Yuan-Fu1
1Department of Physics, Nanjing University, Nanjing 210093
2College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
3Institute of Coordination Chemistry, Nanjing University, Nanjing 210093
Mössbauer Investigation of the Ferromagnetic Coupling in Copper-Iron Polycyanides
HE Yun1;DAI Yao-Dong2;HUANG Hong-Bo1;A. M. Ali1;LIN Jun1;YU Zhi3;XIA Yuan-Fu1
1Department of Physics, Nanjing University, Nanjing 210093
2College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
3Institute of Coordination Chemistry, Nanjing University, Nanjing 210093
Abstract： One of the Prussian blue analogs, molecular magnet CuII3[FeIII(CN)6]2.11.6H2O, was investigated by Mössbauer spectroscopy. It was found that transition temperature was around TC = 18.5 K from paramagnetic phase to ferromagnetic phase. The β value of the critical exponent is around 0.338 at magnetic ordering temperature. Therefore, the ferromagnetic coupling interaction of Cu-Fe cyanide could be clearly explained by spin wave theory.
HE Yun;DAI Yao-Dong;HUANG Hong-Bo;A. M. Ali;LIN Jun;YU Zhi;XIA Yuan-Fu. Mössbauer Investigation of the Ferromagnetic Coupling in Copper-Iron Polycyanides[J]. 中国物理快报, 2003, 20(9): 1630-1633.
HE Yun, DAI Yao-Dong, HUANG Hong-Bo, A. M. Ali, LIN Jun, YU Zhi, XIA Yuan-Fu. Mössbauer Investigation of the Ferromagnetic Coupling in Copper-Iron Polycyanides. Chin. Phys. Lett., 2003, 20(9): 1630-1633.
2003, Vol. 20 
