Phase transition in two-dimensional dilute Ising Coulomb gas

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Int. J. Mod. Phys. B; (United States)

DOI:https://doi.org/10.1142/S0217979288001281· OSTI ID:5590168

Szeto, K Y

The magnetic phase diagram of a dilute gas carrying an Ising spin variable and an electronic charge in two dimensions is investigated using a self consistent screening analysis. The bare interaction consists of a long range logarithmic potential which can be attractive (repulsive) for antiparallel (parallel) Ising spins and a screened Coulomb repulsion. The Ising Coulomb gas exhibits a real space pairing of antiparallel spins at low temperature and a plasma phase of free particles at high temperatures. The relevance of this model to pair formation in high temperature superconductors is discussed in the context of doped La/sub 2/CuO/sub 4/.

• Research Organization: York Univ., Toronto, ON (Canada). Dept. of Physics
• OSTI ID: 5590168
• Journal Information: Int. J. Mod. Phys. B; (United States), Journal Name: Int. J. Mod. Phys. B; (United States) Vol. 2:6; ISSN IJPBE
• 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
656001 -- Condensed Matter Physics-- Solid-State Plasma
656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
COULOMB EXCITATION
CRYSTAL MODELS
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC STRUCTURE
ENERGY-LEVEL TRANSITIONS
EXCITATION
HIGH TEMPERATURE
ISING MODEL
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LOW TEMPERATURE
MATHEMATICAL MODELS
OXIDES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
PARTICLES
PHASE DIAGRAMS
PHYSICAL PROPERTIES
PLASMA
RARE EARTH COMPOUNDS
SOLID-STATE PLASMA
SPIN
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TWO-DIMENSIONAL CALCULATIONS