Structure of Fe_3O_4 in the Low Temperature Phase as Deduced from Advanced Analysis of the NMR Study

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概要

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• Experimental results by NMR are most powerful to determine the microscopicelectron ordering structure of magnetite. In a previous paper, we determined thefundamental electron ordering structures by arranging the Fe" ions whichwere characterized by the assortment of the nearest neighbour cations. In thispaper, we divide the fundamental electron ordering structures into unit patterns,which correspond to the resonance lines, and construct a new structure by mixingand jointing again these unit patterns. The new model is a twinning structure, x-ytwin, of two kinds of the "normal" electron ordering patterns. The structure isfundamentally bundle structure and is possibly a layer structure which is formedby layered twin boundaries. This model gives good agreement with the NMRresults even in the intensity ratio of the resonance lines and with the extinctionrule of the diffraction spots. The newly proposed structure is a key to the soJu-Lion of many strange behavior of magnetite at low temperature.

• 社団法人日本物理学会の論文
• 1985-06-15

著者

• Mizoguchi Moriji

  Department of General Education, Tokyo Medical and Dental University

関連論文

• NMR Study on the Supertransferred Hyperfine Magnetic Field at ^55Mn in Ferromagnetic Perovskites La (Co_Mg_x)_Mn_O_3
• Absence of Heat Capacity Anomaly at about 10 K in Fe_3O_4
• The Transistorized B-H Loop Tracer and the Asteroid Curve Tracer
• Temparature Dependence of NMR of Magnetic at about 10 K
• Thyratron Switch for Pulsed NMR Apparatus
• Abrupt Change of NMR Line Shape in the Low Temperature Phase of Fe_3O_4
• Structure of Fe_3O_4 in the Low Temperature Phase as Deduced from Advanced Analysis of the NMR Study
• NMR Study of the Low Temperature Phase of Fe_3O_4.II.Electron Ordering Analysis
• NMR Study of the Low Temperature Phase of Fe_3O_4.I.Experiments
• Temperature Dependence of ^V NMR in V_2O_3 up to 1000 K

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