Статья

Superconductivity of CaxC60 prepared by thermal decomposition of azide: ESR and LFS microwave absorption study

H. ArakiDepartment of Electronic Engineering Faculty of Engineering, Osaka University, Suita, Osaka, JapanN. YamasakiDepartment of Electronic Engineering Faculty of Engineering, Osaka University, Suita, Osaka, JapanA.A. ZakhidovDepartment of Electronic Engineering Faculty of Engineering, Osaka University, Suita, Osaka, JapanK. YoshinoDepartment of Electronic Engineering Faculty of Engineering, Osaka University, Suita, Osaka, Japan

International Conference on Science and Technology of Synthetic Metalsconference1994en

ABI

Аннотация

Summary form only given. We have prepared C/sub ax/C/sub 60/ by thermal decomposition of CaN6 and studied the X-evolution of its superconducting properties by low field (LFS) microwave absorption and conventional ESR. Superconducting phase is found at x=5 and also x=6 (with lower fraction) with Tc = 8.4-8.8K. The results of the annealing at different temperature (300-450 /spl deg/C) and of aging effect on the intensity of LFS (and hence the amount of superconducting fraction) and ESR g-value and linewidths are presented. Preliminary results on the C/sub 13/ isotope effect on superconducting T/sub c/ in C/sub a5/C/sub 60/ are also discussed.

Темы

Molecular Junctions and Nanostructures Inorganic Chemistry and Materials Diamond and Carbon-based Materials Research

Идентификаторы

DOI: 10.1109/stsm.1994.835029

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