Heat capacity of La/sub 1. 8/Sr/sub 0. 2/CuO/sub 4/ in the low-temperature region

Journal Article · Sun May 01 04:00:00 EDT 1988 · Inorg. Mater. (Engl. Transl.); (United States)

OSTI ID:6422556

Gavrichev, K S; Gorbunov, V E; Konovalova, I A; Lazarev, V B; Shaplygin, I S; Tishchenko, E A

The heat capacity temperature dependence was studied on a La/sub 1.8/Sr/sub 0.2/CuO/sub 4/ sample. The sample had a superconducting transition temperature of 42.5 K with a width ..delta..T of 2.5 K. The sample was prepared by evaporation of mixture of aqueous solutions of the nitrates of lanthanum, strontium, and copper, with subsequent heat treatment. A sample weighting 2.6977 g (M = 395.0975) was studied with an adiabatic calorimeter over the range 7-300 K at 107 points. The values of the thermodynamic functions of La/sub 1.8/Sr/sub 0.2/CuO/sub 4/ are shown.

• Research Organization: N.S. Kurakov Institute of General and Inorganic Chemistry (USSR)
• OSTI ID: 6422556
• Journal Information: Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 23:12; ISSN INOMA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
CALORIMETRY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY DENSITY
HEAT TREATMENTS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
RARE EARTH COMPOUNDS
SPECIFIC HEAT
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY LOW TEMPERATURE