Superconductivity at 60 K in La2-xSrxCaCu2O6

the simplest double-layer cuprate

R. J. Cava, B. Batlogg, R. B. Van Dover, J. J. Krajewski, J. V. Waszczak, R. M. Fleming, W. F. Peck, L. W. Rupp, P. Marsh, A. C.W.P. James, Lynn Schneemeyer

Research output: Contribution to journalArticleResearchpeer-review

202 Citations (Scopus)

Abstract

STARTING with the pioneering work of Bednorz and Müller1, many copper-oxide-based superconductors with high transition temperatures (T c) have been discovered. All contain layers of copper-oxygen squares, pyramids or octahedra as their electronically active structural components2,3. One structure type, first reported for La2SrCu2O6 and La2CaCu2O6 (ref. 4), has stood as an enigma since the beginning of high-T c research. This crystal structure4-7 (Fig. 1) is the least complex of all the structures with the double layers of copper oxide pyramids common to the compounds with highest T c, yet despite considerable effort, both published8,9 and unpublished, it has not until now been made superconducting. Here we report the successful synthesis and preliminary physical characterization of superconducting (La, Sr)2CaCu2O6. The highest transition temperature observed is 60 K at the composition La1.6Sr0.4CaCu2O6. This is a uniquely simple double-layer superconductor, which, like its single-layer analogue (La, Sr)2CuO4, becomes superconducting through the introduction of carriers in an unambiguous manner-by straightforward atomic substitution without the intervention of charge reservoir layers with flexible valence states.

Original languageEnglish
Pages (from-to)602-604
Number of pages3
JournalNature
Volume345
Issue number6276
DOIs
StatePublished - 1 Jan 1990

Fingerprint

Copper oxides
Superconductivity
Superconducting materials
Copper
Substitution reactions
Oxygen
Crystals
Chemical analysis

Cite this

Cava, R. J., Batlogg, B., Van Dover, R. B., Krajewski, J. J., Waszczak, J. V., Fleming, R. M., ... Schneemeyer, L. (1990). Superconductivity at 60 K in La2-xSrxCaCu2O6: the simplest double-layer cuprate. Nature, 345(6276), 602-604. https://doi.org/10.1038/345602a0
Cava, R. J. ; Batlogg, B. ; Van Dover, R. B. ; Krajewski, J. J. ; Waszczak, J. V. ; Fleming, R. M. ; Peck, W. F. ; Rupp, L. W. ; Marsh, P. ; James, A. C.W.P. ; Schneemeyer, Lynn. / Superconductivity at 60 K in La2-xSrxCaCu2O6 : the simplest double-layer cuprate. In: Nature. 1990 ; Vol. 345, No. 6276. pp. 602-604.
@article{355dfca2fad54fdb8436e7bae4cf8ba9,
title = "Superconductivity at 60 K in La2-xSrxCaCu2O6: the simplest double-layer cuprate",
abstract = "STARTING with the pioneering work of Bednorz and M{\"u}ller1, many copper-oxide-based superconductors with high transition temperatures (T c) have been discovered. All contain layers of copper-oxygen squares, pyramids or octahedra as their electronically active structural components2,3. One structure type, first reported for La2SrCu2O6 and La2CaCu2O6 (ref. 4), has stood as an enigma since the beginning of high-T c research. This crystal structure4-7 (Fig. 1) is the least complex of all the structures with the double layers of copper oxide pyramids common to the compounds with highest T c, yet despite considerable effort, both published8,9 and unpublished, it has not until now been made superconducting. Here we report the successful synthesis and preliminary physical characterization of superconducting (La, Sr)2CaCu2O6. The highest transition temperature observed is 60 K at the composition La1.6Sr0.4CaCu2O6. This is a uniquely simple double-layer superconductor, which, like its single-layer analogue (La, Sr)2CuO4, becomes superconducting through the introduction of carriers in an unambiguous manner-by straightforward atomic substitution without the intervention of charge reservoir layers with flexible valence states.",
author = "Cava, {R. J.} and B. Batlogg and {Van Dover}, {R. B.} and Krajewski, {J. J.} and Waszczak, {J. V.} and Fleming, {R. M.} and Peck, {W. F.} and Rupp, {L. W.} and P. Marsh and James, {A. C.W.P.} and Lynn Schneemeyer",
year = "1990",
month = "1",
day = "1",
doi = "10.1038/345602a0",
language = "English",
volume = "345",
pages = "602--604",
journal = "Nature",
issn = "0028-0836",
publisher = "Nature Publishing Group",
number = "6276",

}

Cava, RJ, Batlogg, B, Van Dover, RB, Krajewski, JJ, Waszczak, JV, Fleming, RM, Peck, WF, Rupp, LW, Marsh, P, James, ACWP & Schneemeyer, L 1990, 'Superconductivity at 60 K in La2-xSrxCaCu2O6: the simplest double-layer cuprate', Nature, vol. 345, no. 6276, pp. 602-604. https://doi.org/10.1038/345602a0

Superconductivity at 60 K in La2-xSrxCaCu2O6 : the simplest double-layer cuprate. / Cava, R. J.; Batlogg, B.; Van Dover, R. B.; Krajewski, J. J.; Waszczak, J. V.; Fleming, R. M.; Peck, W. F.; Rupp, L. W.; Marsh, P.; James, A. C.W.P.; Schneemeyer, Lynn.

In: Nature, Vol. 345, No. 6276, 01.01.1990, p. 602-604.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Superconductivity at 60 K in La2-xSrxCaCu2O6

T2 - the simplest double-layer cuprate

AU - Cava, R. J.

AU - Batlogg, B.

AU - Van Dover, R. B.

AU - Krajewski, J. J.

AU - Waszczak, J. V.

AU - Fleming, R. M.

AU - Peck, W. F.

AU - Rupp, L. W.

AU - Marsh, P.

AU - James, A. C.W.P.

AU - Schneemeyer, Lynn

PY - 1990/1/1

Y1 - 1990/1/1

N2 - STARTING with the pioneering work of Bednorz and Müller1, many copper-oxide-based superconductors with high transition temperatures (T c) have been discovered. All contain layers of copper-oxygen squares, pyramids or octahedra as their electronically active structural components2,3. One structure type, first reported for La2SrCu2O6 and La2CaCu2O6 (ref. 4), has stood as an enigma since the beginning of high-T c research. This crystal structure4-7 (Fig. 1) is the least complex of all the structures with the double layers of copper oxide pyramids common to the compounds with highest T c, yet despite considerable effort, both published8,9 and unpublished, it has not until now been made superconducting. Here we report the successful synthesis and preliminary physical characterization of superconducting (La, Sr)2CaCu2O6. The highest transition temperature observed is 60 K at the composition La1.6Sr0.4CaCu2O6. This is a uniquely simple double-layer superconductor, which, like its single-layer analogue (La, Sr)2CuO4, becomes superconducting through the introduction of carriers in an unambiguous manner-by straightforward atomic substitution without the intervention of charge reservoir layers with flexible valence states.

AB - STARTING with the pioneering work of Bednorz and Müller1, many copper-oxide-based superconductors with high transition temperatures (T c) have been discovered. All contain layers of copper-oxygen squares, pyramids or octahedra as their electronically active structural components2,3. One structure type, first reported for La2SrCu2O6 and La2CaCu2O6 (ref. 4), has stood as an enigma since the beginning of high-T c research. This crystal structure4-7 (Fig. 1) is the least complex of all the structures with the double layers of copper oxide pyramids common to the compounds with highest T c, yet despite considerable effort, both published8,9 and unpublished, it has not until now been made superconducting. Here we report the successful synthesis and preliminary physical characterization of superconducting (La, Sr)2CaCu2O6. The highest transition temperature observed is 60 K at the composition La1.6Sr0.4CaCu2O6. This is a uniquely simple double-layer superconductor, which, like its single-layer analogue (La, Sr)2CuO4, becomes superconducting through the introduction of carriers in an unambiguous manner-by straightforward atomic substitution without the intervention of charge reservoir layers with flexible valence states.

UR - http://www.scopus.com/inward/record.url?scp=0025446272&partnerID=8YFLogxK

U2 - 10.1038/345602a0

DO - 10.1038/345602a0

M3 - Article

VL - 345

SP - 602

EP - 604

JO - Nature

JF - Nature

SN - 0028-0836

IS - 6276

ER -

Cava RJ, Batlogg B, Van Dover RB, Krajewski JJ, Waszczak JV, Fleming RM et al. Superconductivity at 60 K in La2-xSrxCaCu2O6: the simplest double-layer cuprate. Nature. 1990 Jan 1;345(6276):602-604. https://doi.org/10.1038/345602a0