Landau-level spin waves and Skyrmion energy in the two-dimensional Heisenberg antiferromagnet

Assa Auerbach; Brond E. Larson; Ganpathy N. Murthy

doi:10.1103/PhysRevB.43.11515

Landau-level spin waves and Skyrmion energy in the two-dimensional Heisenberg antiferromagnet

Assa Auerbach, Brond E. Larson, Ganpathy N. Murthy

Physics And Astronomy

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18 Scopus citations

Abstract

A continuum perturbative analysis and the Schwinger-boson mean-field theory are used to evaluate the ground-state energy of the two-dimensional Heisenberg antiferromagnet in the presence of background topological density. The spin-wave spectrum is bunched into Landau levels. The gauge charge of the Schwinger bosons is half the charge of the Holstein-Primakoff spin waves. The mean-field Skyrmion creation energy vanishes with the ordered moment at the disordering transition.

Original language	English
Pages (from-to)	11515-11518
Number of pages	4
Journal	Physical Review B
Volume	43
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.43.11515
State	Published - 1991

ASJC Scopus subject areas

Condensed Matter Physics

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title = "Landau-level spin waves and Skyrmion energy in the two-dimensional Heisenberg antiferromagnet",

abstract = "A continuum perturbative analysis and the Schwinger-boson mean-field theory are used to evaluate the ground-state energy of the two-dimensional Heisenberg antiferromagnet in the presence of background topological density. The spin-wave spectrum is bunched into Landau levels. The gauge charge of the Schwinger bosons is half the charge of the Holstein-Primakoff spin waves. The mean-field Skyrmion creation energy vanishes with the ordered moment at the disordering transition.",

author = "Assa Auerbach and Larson, {Brond E.} and Murthy, {Ganpathy N.}",

year = "1991",

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T1 - Landau-level spin waves and Skyrmion energy in the two-dimensional Heisenberg antiferromagnet

AU - Auerbach, Assa

AU - Larson, Brond E.

AU - Murthy, Ganpathy N.

PY - 1991

Y1 - 1991

N2 - A continuum perturbative analysis and the Schwinger-boson mean-field theory are used to evaluate the ground-state energy of the two-dimensional Heisenberg antiferromagnet in the presence of background topological density. The spin-wave spectrum is bunched into Landau levels. The gauge charge of the Schwinger bosons is half the charge of the Holstein-Primakoff spin waves. The mean-field Skyrmion creation energy vanishes with the ordered moment at the disordering transition.

AB - A continuum perturbative analysis and the Schwinger-boson mean-field theory are used to evaluate the ground-state energy of the two-dimensional Heisenberg antiferromagnet in the presence of background topological density. The spin-wave spectrum is bunched into Landau levels. The gauge charge of the Schwinger bosons is half the charge of the Holstein-Primakoff spin waves. The mean-field Skyrmion creation energy vanishes with the ordered moment at the disordering transition.

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DO - 10.1103/PhysRevB.43.11515

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Landau-level spin waves and Skyrmion energy in the two-dimensional Heisenberg antiferromagnet

Abstract

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