Published October 1, 2006 | Version v1
Journal article

Search for new superconductors by the Li-intercalation into layered perovskites

  • 1. Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579 (Japan) and CREST, Japan Science and Technology Corporation (JST) (Japan)
  • 2. CREST, Japan Science and Technology Corporation (JST) (Japan)
  • 3. Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579 (Japan)

Description

Synthesis and superconductivity of new Li-intercalated layered perovskites, Li xSr2CuO2X2 (X = Cl, Br, I) and Li xAB2M3O10 (A = K, Rb, Cs; B = Ca, Sr, Ba; M = Nb, Ta), are reviewed. Li-intercalation has been carried out by the electrochemical technique. First, layered cuprates Li xSr2CuO2X2 show superconductivity with T c = 8.0 K and 4.5 K for X = Br and I, respectively. However, no superconductivity appears for X = Cl. Next, we have succeeded in preparing new superconductors, Li xCsSr2Nb3O10 with T c = 5.5 K and Li xRbSr2Nb3O10 with T c = 6 K. In the layered tantalates of Li xCsSr2Ta3O10, however, no superconductivity has been observed

Additional details

Identifiers

DOI
10.1016/j.physc.2006.03.070;
PII
S0921-4534(06)00219-X;

Publishing Information

Journal Title
Physica. C, Superconductivity
Journal Volume
445-448
Journal Page Range
p. 26-30
ISSN
0921-4534
CODEN
PHYCE6

Conference

Title
18. international symposium on superconductivity
Acronym
ISS 2005
Dates
24-25 Oct 2005
Place
Tsukuba (Japan)

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.