Nuclear Magnetic Resonance in Dilute Copper Alloys at Low Temperatures, I. : Experimental Aspects

スポンサーリンク

概要

• 論文の詳細を見る

• The nuclear magnetic resonance of Cu^<63> in dilute copper alloys has been studied in order to make clear the origin of their anomalous magnetic, electric and thermal behaviors observed at low temperatures. The specimens were the dilute solid solutions of Ti, Cr, Mn, Fe, Co, Ni Zn and Sn in Cu. From the temperature dependence of the observed line width, it was concluded that Ti, Ni, and Zn behave as non-magnetic ions while the others do as paramagnetic ions. Sn in Cu-alloy showed temperature dependent paramagnetism in spite of its temperature independent paramagnetism in the metal. The solute contribution to the widths in Cu-Cr, Cu-Mn, Cu-Fe and Cu-Co in weak field showed a Curie-Weiss behavior. The Weiss temperatures obtained indicated increasing ferromagnetic interaction with increasing solute concentration. The width in Cu-Mn was proportional to the magnetic field except at very low temperatures, while those in Cu-Cr and Cu-Fe showed anomalous field dependence at temperatures below 20'K. The Knight shift in these paramagnetic alloys was larger than that in pure Cu, but the deviation was very small at high temperatures. At very low temperatures the spin-lattice relaxation times in Cu-Cr, Cu-Mn and Cu-Fe became shorter than those in pure Cu and in non-magnetic alloys such as Cu-Zn.

• 社団法人日本物理学会の論文
• 1959-05-05

著者

• Sugawara Tadashi

  The Research Institute For Iron Steel And Other Metals

関連論文

• Low Temperature Anomaly in the Proton Resonance of Some Nickel Salts
• The Crystal Structure of CoCl_2・6H_2O
• Nuclear Magnetic Resonance in Solid Hydrogen with Various Ortho Concentrations
• The Crystal Structure of Acetylene. I
• Saturation of the Nuclear Magnetic Resonance Absorption and the Spin-Lattice Relaxation Time in Solid Hydrogen
• On the Transition of Yellow Phosphorus at Low Temperatures. II
• The Crystal Structure of Sulfur Dioxide
• Proton Resonance in the Antiferromagnetic State of NiCl_2・6H_2O and CoCl_2・6H_2O
• Nuclear Magnetic Resonance in Solid Solutions of Transition Metals in Copper and Aluminum
• Nuclear Magnetic Resonance in Dilute Copper Alloys at Low Temperatures, I. : Experimental Aspects
• Distortion of the Octahedral Charge Distribution in Some Cobalt Complexes
• On the Distribution Curves for Liquids. III
• Thermal and X-Ray Studies on Solid Cyclohexanol Polymorphism and Anomalous Specific Heat in Supercooled State

もっと見る 閉じる

スポンサーリンク