Superconductivity, Electron Paramagnetic Resonance, and Raman Scattering Studies of Heterofullerides with Cs and Mg

Table 1

Composition, superconducting transition temperature (𝑇_𝑐), crystal lattice parameter (a), and ionic radius of heterometal (𝑟⁺) for some investigated fullerides.

Composition	𝑇𝑐 (K)	a (Å)	𝑟^+ (Å)
K3C60	18.5	14.3110(5)	1.33
Rb2TlC60	27.2	14.448(6)	(+3e) 0.95
			(+1e) 1.47
KCsTlC60	21.7	14.424(14)	(+3e) 0.95
			(+1e) 1.47
RbCsTlC60	26.4	14.673(17)	(+3e) 0.95
			(+1e) 1.47