New family of thallium cuprate superconductors not containing calcium or barium: TlSr n +1− x Ln x Cu n O2 n +3+δ (Ln=La, Pr, or Nd)
1989; American Institute of Physics; Volume: 55; Issue: 25 Linguagem: Inglês
10.1063/1.102255
ISSN1520-8842
AutoresAshok K. Ganguli, V. Manivannan, A. K. Sood, C. N. R. Rao,
Tópico(s)Rare-earth and actinide compounds
ResumoThe 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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