T.G. Togonidze, P.H. Kes, N.N. Kolesnikov, T.W. Li.
Fluctuation effects and critical
fields of Tl2Ba2CuO6+x.
A new approach for determination of dHc2/dT in vicinity
of Tc has been suggested. Derivatives of critical fields
on temperature have been found from measurements of magnetization of Tl2Ba2CuO6+x
single crystals with various Tc.