The lanthanum-copper oxide system as a strongly correlated Fermi liquid

Some properties of the La sub 2 CuO sub 4--y oxide system are discussed in terms of those of a correlated Fermi liquid. It is suggested that, for small oxygen deficiency, this system has a thermal Mott transition at a temperature T sub M approx 200-300K. Below T sub M , the Fermi liquid tends to met...

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Veröffentlicht in:	J. Low Temp. Phys.; (United States) 1988-07, Vol.72 (1-2), p.189-194
1. Verfasser:	PAPOULAR, M
Format:	Artikel
Sprache:	eng
Schlagworte:	360204 - Ceramics, Cermets, & Refractories- Physical Properties 656100 - Condensed Matter Physics- Superconductivity ANTIFERROMAGNETISM CHALCOGENIDES CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Condensed matter: structure, mechanical and thermal properties COOPER PAIRS COPPER COMPOUNDS COPPER OXIDES COULOMB FIELD CRYSTAL DEFECTS CRYSTAL MODELS CRYSTAL STRUCTURE CRYSTAL-PHASE TRANSFORMATIONS DIAGRAMS ELECTRIC CONDUCTIVITY ELECTRIC FIELDS ELECTRICAL PROPERTIES Exact sciences and technology FERMI GAS FERROMAGNETISM FLUIDS GASES HOLES LANTHANUM COMPOUNDS LANTHANUM OXIDES MAGNETIC PROPERTIES MAGNETIC SUSCEPTIBILITY MAGNETISM MATERIALS SCIENCE MATHEMATICAL MODELS MEAN-FIELD THEORY OXIDES OXYGEN COMPOUNDS PARAMAGNETISM PHASE DIAGRAMS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES Physics POINT DEFECTS Quantum fluids and solids liquid and solid helium RARE EARTH COMPOUNDS SUPERCONDUCTIVITY TEMPERATURE DEPENDENCE THERMODYNAMIC PROPERTIES TRANSITION ELEMENT COMPOUNDS TRANSITION TEMPERATURE VACANCIES
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Beschreibung
Zusammenfassung:	Some properties of the La sub 2 CuO sub 4--y oxide system are discussed in terms of those of a correlated Fermi liquid. It is suggested that, for small oxygen deficiency, this system has a thermal Mott transition at a temperature T sub M approx 200-300K. Below T sub M , the Fermi liquid tends to metamagnetism, with a susceptibility that increases quadratically with T, consistently with experimental findings. 13 ref.--AA
ISSN:	0022-2291 1573-7357
DOI:	10.1007/BF00681732