Skyrmion crystals and their symmetries

Journal Article · Wed Nov 15 00:00:00 EST 1989 · Physical Review (Section) D: Particles and Fields; (USA)

DOI:https://doi.org/10.1103/PhysRevD.40.3421· OSTI ID:5243374

Kugler, M ^[1]; Shtrikman, S ^[2]

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1. Department of Physics, Weizmann Institute of Science, Rehovot, (Israel)
2. Department of Electronics, Weizmann Institute of Science, Rehovot, (Israel)

We discuss the phase diagram of Skyrmion crystals as a function of both density and pressure. The use of symmetry properties of the various phases and of Fourier expansions tailored to fit these symmetries facilitates our discussion. A simple cubic arrangement of half-Skyrmions is, almost everywhere, the lowest-energy phase. At very high densities the simple cubic phase undergoes a transition to a body-centered-cubic crystal of half-Skyrmions. The transition to a crystal of Skyrmions at low densities, that was previously suggested, is not accessible thermodynamically. A first-order phase transition leading to a phase separation occurs before the previous transition can be reached.

• OSTI ID: 5243374
• Journal Information: Physical Review (Section) D: Particles and Fields; (USA), Vol. 40:10; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR MATTER
SOLITONS
ISOSPIN
LATTICE FIELD THEORY
NONLINEAR PROBLEMS
PHASE TRANSFORMATIONS
QUANTUM CRYSTALS
SKYRME POTENTIAL
SYMMETRY
CRYSTALS
FIELD THEORIES
MATTER
NUCLEON-NUCLEON POTENTIAL
PARTICLE PROPERTIES
POTENTIALS
QUANTUM FIELD THEORY
QUASI PARTICLES
645400* - High Energy Physics- Field Theory
653002 - Nuclear Theory- Nuclear Matter