New aspects in the interpretation of the T′ and T NMR lines in Rb3C60
作者： M. Kraus , O. Klein , G. Buntkowsky , K. Lüders
DOI: 10.1016/S0921-4526(99)00239-2
关键词: Cooling rate 、 Superconductivity 、 Annealing (metallurgy) 、 Analytical chemistry 、 Fullerene 、 Nuclear magnetic resonance 、 Materials science 、 Ion 、 Superconducting volume fraction 、 Intensity ratio
摘要: Abstract It is shown that the intensity ratio of T′/T 87 Rb NMR lines can be influenced by a variation cooling rate from preparation temperature to ambient temperatures. We discuss origin appearance T′ line in Rb3C60 and changes T with respect magnetically different surroundings Rb+ ions caused two standard orientations C603− ions. This interpretation consistent structural results X-ray analyses. Additionally, sample's superconducting volume fraction after annealing process.
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