| Autor: |
Dilanyan, R. A., Khasanov, S. S., Bredikhin, S. I., Gurov, A. F., Kveder, V. V., Osip’yan, Yu. A., Shalynin, A. I. |
| Předmět: |
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| Zdroj: |
Journal of Experimental & Theoretical Physics; Dec2001, Vol. 93 Issue 6, p1239, 6p |
| Abstrakt: |
The structure and phase transitions of C[sub 60] crystals doped with lithium by injecting metal ions from the superionic crystal-C[sub 60] single crystal heterojunction under electrodiffusion conditions are reported. The sample experienced irreversible transitions resulting in the virtually complete disappearance of EPR signals and MW conduction in the temperature range 320-370 K. In this temperature interval, a new C[sub 60] phase was formed; the phase contained polymeric chains of C[sub 60] molecules along the crystallographic c axis and lithium clusters. The structure of this phase was determined. Annealing at 620 K restored the EPR signal and, according to the X-ray data, the initial cubic structure of pure C[sub 60]. The X-ray pattern, however, contained additional diffraction peaks, which was evidence of the presence of one more phase with a structure yet unknown. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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