Triple- Q vortex-lattice magnetic structures of itinerant-fermion systems on a triangular lattice

Journal Article · Sat Feb 01 00:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.2190· OSTI ID:7205749

Fujita, M ^[1]; Nakanishi, T; Machida, K ^[2]

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1. Institute of Materials Science, University of Tsukuba, Tsukuba 305 (Japan)
2. Department of Physics, Okayama University, Okayama 700 (Japan)

We present a general discussion of the vortex-lattice state on a triangular lattice. The vortex-lattice state is characterized as the noncollinear triple-{bold Q} spin-density-wave state with higher harmonics and stabilized near half filling in the itinerant-fermion system. Various types of the vortex-lattice states are presented by utilizing the Hubbard model within a mean-field approximation, and we show how the excess particles or holes are properly accommodated in a midgap state created inside the main gap of the energy spectrum.

• OSTI ID: 7205749
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 45:5; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HIGH-TC SUPERCONDUCTORS
SPIN WAVES
ANTIFERROMAGNETISM
CRITICAL TEMPERATURE
ELECTRONS
GROUND STATES
HOLES
MAGNETIC FLUX
VAN DER WAALS FORCES
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMIONS
LEPTONS
MAGNETISM
PHYSICAL PROPERTIES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
665411* - Basic Superconductivity Studies- (1992-)