TEMPERATURE-DEPENDENCE OF ATOMIC DISPLACEMENTS IN SUPERCONDUCTOR K2RBC60

Authors
YOSHIDA Y KUBOZONO Y URAKAWA T MAEDA H KASHINO S MURAKAMI Y OHTA T IZUMI F YAMADA K FURUKAWA Y
Citation
Y. Yoshida et al., TEMPERATURE-DEPENDENCE OF ATOMIC DISPLACEMENTS IN SUPERCONDUCTOR K2RBC60, Solid state communications, 105(9), 1998, pp. 557-560
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
105
Issue
9
Year of publication
1998
Pages
557 - 560
Database
ISI
SICI code
0038-1098(1998)105:9<557:TOADIS>2.0.ZU;2-8
Abstract
The temperature dependence of atomic displacement in superconducting K 2RbC60 and non-superconducting Rb6C60 has been studied on the basis of X-ray powder diffraction. Rietveld refinement of X-ray powder diffrac tion data for K2RbC60 at 10.2 K revealed that the occupancy of Rb+ ion s at an octahedral site is not 100% but 71%. It has been found that at omic displacements for C atom and metal ions in K2RbC60 show an increa se around its superconducting critical temperature. Such an increase h as not been observed in Rb6C60. (C) 1998 Elsevier Science Ltd.