Published September 2000 | Version v1
Journal article Metadata-only

Correlation between Tc and the structural parameters of the cation sublattice in the perovskite layer of HgBa2CuO4+δ and Tl2Ba2CuO4+δ

Creators

  • 1. Inst. Khimii DV RAN, Vladivostok (Russian Federation)
  • 2. Inst. Neorganicheskoj Khimii SO RAN, Novosibirsk (Russian Federation)
  • 3. Inst. Fizicheskoj Khimii im. L.Ya. Karpova, Moscow (Russian Federation)

Description

Correlation between superconductivity transition temperature and interatomic distances in compounds HgBa2CuO4+δ and Tl2Ba2CuO4+δ was analyzed. Parabolic dependence of Tc on the value of Cu-Cu distances ratio along diagonal direction of CuO2-plane and Ba-Ba distances between Ba-cations planes was found. Factors determining the distances were discussed. The role of the structure of Ba-Cu perovskite layer cation sublattice of the phases in the appearance of high-temperature superconductivity was shown

Abstract (Russian)

Проанализирована связь температуры сверхпроводящего перехода с межатомными расстояниями соединений HgBa2CuO4+δ и Tl2Ba2CuO4+δ. Найдена параболическая зависимость Тc от величины отношения расстояний Cu-Cu вдоль диагонального направления CuO2-плоскости и расстояний Ba-Ba между плоскостями Ва-катионов. Обсуждены факторы, определяющие эти расстояния. Показана роль структуры катионной подрешетки перовскитного слоя Ba-Cu этих фаз в возникновении высокотемпературной сверхпроводимости

Additional details

Additional titles

Original title (Russian)
Связ' Т

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
36
Journal Issue
9
Journal Page Range
p. 1100-1110
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
33016979
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM COMPOUNDS; CRYSTAL LATTICES; CUPRATES; HIGH-TC SUPERCONDUCTORS; INTERATOMIC DISTANCES; LATTICE PARAMETERS; MERCURY COMPOUNDS; THALLIUM COMPOUNDS; TRANSITION TEMPERATURE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; CRYSTAL STRUCTURE; DISTANCE; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS

Optional Information

Notes
45 refs.; 2 tabs.; 5 figs.