Effect of a low magnetic field on crystallinity and magnetic susceptibility of molecular magnet {NBu4[FeCr(ox)3]}x (NBu4=tetra( n-butyl) ammonium ion; ox=oxalate ion) |
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| Authors: | Hong Bi Qianwang Chen Yonglong Zhuang Shenqiang Zhao |
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| Affiliation: | 1. Structure Research Laboratory, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China;2. Department of Chemistry, Anhui University, Hefei, Anhui 230039, China;3. Center of Materials Analysis, Anhui University, Hefei, Anhui 230039, China |
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| Abstract: | Molecular magnet {NBu4[Fe Cr(ox)3]}x (NBu4+=tetra(n-buty1) ammonium ion; ox2−=oxalate ion) was synthesized under an applied low magnetic field of 0.3 T in comparison to that synthesized without a field. Their crystallinities, morphologies and magnetic properties were characterized by using the X-ray diffractionmeter, the transmission electron microscope, and a superconducting quantum interference device. It is found that the average size of particles synthesized under the applied field appears larger than that synthesized without a field. Moreover, its crystallinity, morphology and magnetic susceptibility have also been improved. However, its chemical structure and ferromagnetic phase transition temperature Tc do not change. Possible reasons to explain this effect are also discussed. |
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| Keywords: | 75.45 Xx 75.50 Xx |
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