Spin-orbit-induced lattice instabilities in the half-filled hopping Hamiltonian
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396 (United States)
We compare the effect of a spin-orbit term and a Peierls term on the ground state of the half-filled hopping Hamiltonian. These terms are caused by displacement on the background to the lattice sites (spin-orbit term) and displacement on the actual lattice sites (Peierls term). We show how Peierls-like instabilities can result in either case and explain why the spin-orbit model can be more singular than the Peierls lmodel. We disregard electron-electron interactions and apply our results in two dimensions to La[sub 2]CuO[sub 4].
- OSTI ID:
- 6494633
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 51:11; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
665000 -- Physics of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CHEMICAL BONDS
COLLECTIVE EXCITATIONS
COPPER COMPOUNDS
COUPLING
CUPRATES
DEFORMATION
ELASTICITY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
GROUND STATES
INSTABILITY
INTERMEDIATE COUPLING
L-S COUPLING
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LATTICE VIBRATIONS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TWO-DIMENSIONAL CALCULATIONS
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
665000 -- Physics of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CHEMICAL BONDS
COLLECTIVE EXCITATIONS
COPPER COMPOUNDS
COUPLING
CUPRATES
DEFORMATION
ELASTICITY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
GROUND STATES
INSTABILITY
INTERMEDIATE COUPLING
L-S COUPLING
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LATTICE VIBRATIONS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TWO-DIMENSIONAL CALCULATIONS