Published January 1997 | Version v1
Journal article Metadata-only

Magnetic phase diagram of the Hubbard model in three dimensions: The second-order local approximation

Creators

  • 1. Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221 (United States)
  • 2. Department of Physics, Georgetown University, Washington, D.C. 20057-0995 (United States)

Description

A local, second-order (truncated) approximation is applied to the Hubbard model in three dimensions. Lowering the temperature, at half-filling, the paramagnetic ground state becomes unstable towards the formation of a commensurate spin-density-wave (SDW) state (antiferromagnetism) and sufficiently far away from half-filling towards the formation of incommensurate SDW states. The incommensurate-ordering wave vector does not deviate much from the commensurate one, which is in accordance with the experimental data for the SDW in chromium alloys. copyright 1997 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review. B, Condensed Matter
Journal Volume
55
Journal Issue
2
Journal Page Range
p. 942-946.
ISSN
0163-1829
CODEN
PRBMDO

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
28052495
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETISM; CHROMIUM ALLOYS; ELECTRON CORRELATION; FLUCTUATIONS; GROUND STATES; HUBBARD MODEL; MAGNETIC PROPERTIES; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; SELF-ENERGY; TEMPERATURE DEPENDENCE; THREE-DIMENSIONAL CALCULATIONS
Descriptors DEC
ALLOYS; CORRELATIONS; CRYSTAL MODELS; DIAGRAMS; ENERGY; ENERGY LEVELS; INFORMATION; MAGNETISM; MATHEMATICAL MODELS; PHYSICAL PROPERTIES; TRANSITION ELEMENT ALLOYS; VARIATIONS