Impurity Effects on the Transition Temperature of Magnetite
スポンサーリンク
概要
- 論文の詳細を見る
Influence of oxidization and various impurities on the transition temperature of the Verwey order in magnetite was studied experimentally. A small amount of impurities such as Li, Ni, Co, Cr, Al, Ti, Mg, Zn and Ga was doped and the transition temperature was determined by magnetic measurement. The decreases of the transition temperature of the specimens doped with the impurities are not simply related to the amount of the ferrous ions on the B sites but become larger as the ionic configurations deviate from the stoichiometric one. Oxidation of magnetite also decreases the transition temperature and this effect is smaller for the specimens sintered at lower temperature. For the Ga-doped specimens, the concentration dependence of the transition point is found to show a sharp change at a small (0.3%) Ga concentration.
- 社団法人日本物理学会の論文
- 1972-03-05
著者
関連論文
- Ferrimagnetism and Ion Distribution in Ge_xZn_Fe_2O_4
- Plasma Dike Potential Sustained by Local Electron Cyclotron Resonance along Converging Magnetic-Field Lines : Fluids, Plasmas, and Electric Discharges
- Nuclear Magnetic Resonance in Ga_xFe_O_4 and GaNiFeO_4
- Experimental Separation of Super Transferred Hyperfine Fields of Fe^ -ions in Zn_xNi_Fe_2O_4
- Impurity Effects on the Transition Temperature of Magnetite
- NMR Study of Internal Field of Trivalent Diamagnetic Cations in Nickel Ferrite
- NMR of In^ Nuclei in NiIn_xFe_O_4