100-K superconducting phases in the Tl-Ca-Ba-Cu-O system

Journal Article · Mon Apr 18 00:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.1657· OSTI ID:5255255

Hazen, R M; Finger, L W; Angel, R J; Prewitt, C T; Ross, N L; Hadidiacos, C G; Heaney, P J; Veblen, D R; Sheng, Z Z; El Ali, A; others, and

Two superconducting phases, Tl/sub 2/Ca/sub 2/Ba/sub 2/Cu/sub 3/O/sub 10/..mu../sub delta/ (2223) and Tl/sub 2/Ca/sub 1/Ba/sub 2/Cu/sub 2/)/sub 8/..mu../sub delta/ (2122), both with onset T/sub c/ near 120 K and zero resistivity at 100 K, have been isolated from samples in the Tl-Ca-Ba-Cu-O system. The new 2223 superconductor has a 5.40 x 5.40 x 36.25-A/sup 3/ pseudotetragonal unit cell. The 2122 superconductor, which appears to be structurally related to Bi/sub 2/CaSr/sub 2/Cu/sub 2/O/sub 8/..mu../sub delta/, has a 5.44 x 5.44 x 29.55-A/sup 3/ pseudotetragonal subcell. The 2223 phase is probably related to 2122 by the addition of extra calcium and copper layers

• Research Organization: Geophysical Laboratory, Carnegie Institute of Washington, Washington, D.C. 20008
• OSTI ID: 5255255
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 60:16; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
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BARIUM COMPOUNDS
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COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LOW TEMPERATURE
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
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