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Vortex Crystals with Chiral Stripes in Itinerant Magnets

Ozawa, Ryo ; Hayami, Satoru ; Barros, Kipton ; Chern, Gia-Wei ; Motome, Yukitoshi ; Batista, Cristian D.

Journal of the Physical Society of Japan, 2016-10, Vol.85 (10), p.103703 [Periódico revisado por pares]

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Título:
Vortex Crystals with Chiral Stripes in Itinerant Magnets
Autor: Ozawa, Ryo ; Hayami, Satoru ; Barros, Kipton ; Chern, Gia-Wei ; Motome, Yukitoshi ; Batista, Cristian D.
Assuntos: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; High Magnetic Field Science ; Material Science ; MATERIALS SCIENCE
É parte de: Journal of the Physical Society of Japan, 2016-10, Vol.85 (10), p.103703
Notas: USDOE
89233218CNA000001
LA-UR-15-27951
Descrição: Here, we study noncoplanar magnetic ordering in frustrated itinerant magnets. For a family of Kondo square lattice models with classical local moments, we find that a double-Q noncoplanar vortex crystal has lower energy than the single-Q helical order expected from the Ruderman–Kittel–Kasuya–Yosida interaction when the lattice symmetry dictates four global maxima in the bare magnetic susceptibility. By expanding in the small Kondo exchange and the degree of noncoplanarity, we demonstrate that this noncoplanar state arises from a Fermi surface instability occurring in independent sections connected by two ordering wave vectors.
Editor: United States: Physical Society of Japan
Idioma: Inglês

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