Spin crossover in an elastic chain of exchange clusters beyond mean field approximation

作者: Vitaly Morozov , Nikita Lukzen , Victor Ovcharenko

DOI: 10.1039/C004287K

关键词:

摘要: Exact analysis of spin crossover in infinite elastic chain two-spin exchange clusters was performed theoretically beyond mean-field approximation. Statistical mechanics the system exactly calculated by means transfer matrix technique. A possibility spin-Peierls-like magneto-structural transition a one-dimensional shown as result interrelation and subsystems chain. The importance boundary conditions for to occur shown. smoothness depends on parameters elasticity position temperature scale is defined dependence integral cluster deformation. proposed model qualitatively describes main scenario effect polymer heterospin complex copper(II) hexafluoroacetylacetonate with methyl pyrazol-substituted nitronyl nitroxide containing clusters.

参考文章(35)
V. I. Ovcharenko, S. V. Fokin, G. V. Romanenko, Yu. G. Shvedenkov, V. N. Ikorskii, E. V. Tretyakov, S. F. Vasilevskii, Nonclassical Spin Transitions Journal of Structural Chemistry. ,vol. 43, pp. 153- 167 ,(2002) , 10.1023/A:1016094421024
Kazumasa Hosoya, Takafumi Kitazawa, Masashi Takahashi, Masuo Takeda, Jean-François Meunier, Gábor Molnár, Azzedine Bousseksou, Unexpected isotope effect on the spin transition of the coordination polymer Fe(C5H5N)2[Ni(CN)4] Physical Chemistry Chemical Physics. ,vol. 5, pp. 1682- 1688 ,(2003) , 10.1039/B212312F
Roman Boča, Wolfgang Linert, Is there a need for new models of the spin crossover Monatshefte Fur Chemie. ,vol. 134, pp. 199- 216 ,(2003) , 10.1007/978-3-7091-6018-3_6
Victor I. Ovcharenko, Galina V. Romanenko, Ksenia Yu. Maryunina, Artem S. Bogomyakov, Elena V. Gorelik, Thermally Induced Magnetic Anomalies in Solvates of the Bis(hexafluoroacetylacetonate)copper(II) Complex with Pyrazolyl-Substituted Nitronyl Nitroxide Inorganic Chemistry. ,vol. 47, pp. 9537- 9552 ,(2008) , 10.1021/IC8011074
Sergey L. Veber, Matvey V. Fedin, Ksenia Yu. Maryunina, Galina V. Romanenko, Renad Z. Sagdeev, Elena G. Bagryanskaya, Victor I. Ovcharenko, Diamagnetic dilution due to the phase spin transition – An opportunity for the EPR study of intercluster exchange in “breathing” crystals of copper(II) hexafluoroacetylacetonate with pyrazole-substituted nitronyl nitroxide Inorganica Chimica Acta. ,vol. 361, pp. 4148- 4152 ,(2008) , 10.1016/J.ICA.2008.03.126
Alexandra Dobrinescu, Cristian Enachescu, Alexandru Stancu, Ising-like model study of size dependence relaxation in spin crossover complexes Journal of Magnetism and Magnetic Materials. ,vol. 321, pp. 4132- 4138 ,(2009) , 10.1016/J.JMMM.2009.08.017
Andreas Hauser, Jürgen Adler, Philipp Gütlich, Light-induced excited spin state trapping (LIESST) in [Fe(2-mephen)3]2+ embedded in polymer matrices Chemical Physics Letters. ,vol. 152, pp. 468- 472 ,(1988) , 10.1016/0009-2614(88)80443-3
Eugene Tretyakov, Sergei Fokin, Galina Romanenko, Vladimir Ikorskii, Sergei Vasilevsky, Victor Ovcharenko, 2D and 3D Cu(hfac)2 complexes with nitronyl nitroxide biradicals. Inorganic Chemistry. ,vol. 45, pp. 3671- 3678 ,(2006) , 10.1021/IC060132E
K. Boukheddaden, S. Miyashita, M. Nishino, Elastic interaction among transition metals in one-dimensional spin-crossover solids Physical Review B. ,vol. 75, pp. 094112- ,(2007) , 10.1103/PHYSREVB.75.094112