New family of thallium cuprate superconductors not containing calcium or barium: TlSr<i>n</i>+1−<i>x</i>Ln<i>x</i>Cu<i>n</i>O2<i>n</i>+3+δ (Ln=La, Pr, or Nd) — Ashok K. Ganguli (1989) | RDL Network
New family of thallium cuprate superconductors not containing calcium or barium: TlSr<i>n</i>+1−<i>x</i>Ln<i>x</i>Cu<i>n</i>O2<i>n</i>+3+δ (Ln=La, Pr, or Nd)
Applied Physics Letters 55(25): 2664-2666
Article 1989 English
Authors
AG
Ashok K. Ganguli
VM
V. Manivannan
AS
A. K. Sood
Abstract
1 min read
The first two members of the new TlSrn+1−xLnxCunO2n+3+δ (Ln=La, Pr, or Nd) series of superconducting cuprates possessing 1021 and 1122 type structures are described. The n=1 (1021) members with Tcs around 40 K have electrons or holes as the majority charge carriers depending on x. The n=2 (1122) cuprate (Ln=Pr or Nd) shows a Tc in the 80–90 K range.
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