Published February 2001 | Version v1
Journal article Metadata-only

Synthesis and properties of new manganese-containing stabilized cuprates with an anion-deficient perovskite structure

Creators

  • 1. UrO RAN, Inst. Khimii Tverdogo Tela, Ekaterinburg (Russian Federation)

Description

New manganese-containing cuprate with the structure of anion-deficit perovskite Ln4BaCu5-yMnyO13 (Ln = Pr, Nd) are stabilized by method of selective doping cation positions; their structural characteristics are investigated. Electrophysical properties of stabilized compounds, and earlier synthesized solid solutions Ln6-ySi2+yCu8-yMnyO20 (Ln = La, Pr) are studied in the 77-1073 K range. Temperature dependence of specific resistance in the 200-1073 K range is described by thermal activated mechanism. At low temperatures the dependence is interpreted in the context of three-dimensional model of jump conductivity with variable length of free path

Abstract (Russian)

Методом селективного допирования катионных позиций стабилизированы новые марганецсодержащие купраты со структурой анионодефицитного перовскита Ln4BaCu5-yMnyO13 (Ln = Pr, Nd); исследованы их структурные характеристики. Изучены электрофизические свойства стабилизированных соединений, а также синтезированных ранее твердых растворов Ln6-ySi2+yCu8-yMnyO20 (Ln = La, Pr) в интервале 77-1073 К. Температурная зависимость удельного сопротивления в области 200-1073 К описывается термически активированным механизмом. При низких температурах зависимость интерпретируется в рамках трехмерной модели прыжковой проводимости с переменной длиной свободного пробега

Additional details

Additional titles

Original title (Russian)
Синтез и свойстава новых Мн-содержащих стабилизированных купратов со структурой анионодефицитного перовскита

Publishing Information

Journal Title
Zhurnal Neorganicheskoj Khimii
Journal Volume
46
Journal Issue
2
Journal Page Range
p. 204-209
ISSN
0044-457X
CODEN
ZNOKAQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
33012331
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM OXIDES; CHEMICAL PREPARATION; CRYSTAL DOPING; CUBIC LATTICES; CUPRATES; ELECTRIC CONDUCTIVITY; ION IMPLANTATION; LANTHANUM COMPOUNDS; MAGNETIC FLUX; MANGANESE OXIDES; NEODYMIUM OXIDES; PRASEODYMIUM OXIDES; SOLID SOLUTIONS; STABILIZED SUPERCONDUCTORS; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DISPERSIONS; ELECTRICAL PROPERTIES; HOMOGENEOUS MIXTURES; MANGANESE COMPOUNDS; MIXTURES; NEODYMIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; SOLUTIONS; SUPERCONDUCTORS; SYNTHESIS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
14 refs., 5 figs., 3 tabs.