Layered Thallium Cuprates Not Containing Calcium, Barium Or Rare Earth: A New 1223 Type 60k Superconductor In The (Tl, Pb)Srn+1CunO2n+3 Series

Abstract

The n = 1 and n = 3 members of the new (Tl, Pb)Srn+1CunO2n+3 series of cuprates possess primitive tetragonal structures. While the n =3 member is superconducting (Tc ∼ 60K), the n =1 member is metallic immaterial of the T1/Sr ratio.