Observation of a topological transition in the A3 vortices

J. P. Pekola; K. Torizuka; A. J. Manninen; J. M. Kyynäräinen; G. E. Volovik

doi:10.1103/PhysRevLett.65.3293

Observation of a topological transition in the A3 vortices

J. P. Pekola^*
, K. Torizuka
, A. J. Manninen
, J. M. Kyynäräinen
, G. E. Volovik

^*Corresponding author for this work

Not published at VTT

Helsinki University of Technology
Landau Institute for Theoretical Physics

Research output: Contribution to journal › Article › Scientific › peer-review

22 Citations (Scopus)

Abstract

Vortices in A3 in low magnetic fields (H20 mT) have been studied by ultrasonics. A first-order phase change between two vortex types, with dissimilar sound absorption, has been found. The magnetic field at the transition is on the order of the dipolar field Hd. The observed change occurs between continuous vortex textures with different topological charges in the field (where is the magnetic anisotropy vector).

Original language	English
Pages (from-to)	3293-3296
Number of pages	4
Journal	Physical Review Letters
Volume	65
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.65.3293
Publication status	Published - 1990
MoE publication type	A1 Journal article-refereed

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10.1103/PhysRevLett.65.3293

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abstract = "Vortices in A3 in low magnetic fields (H20 mT) have been studied by ultrasonics. A first-order phase change between two vortex types, with dissimilar sound absorption, has been found. The magnetic field at the transition is on the order of the dipolar field Hd. The observed change occurs between continuous vortex textures with different topological charges in the field (where is the magnetic anisotropy vector).",

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AU - Volovik, G. E.

PY - 1990

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AB - Vortices in A3 in low magnetic fields (H20 mT) have been studied by ultrasonics. A first-order phase change between two vortex types, with dissimilar sound absorption, has been found. The magnetic field at the transition is on the order of the dipolar field Hd. The observed change occurs between continuous vortex textures with different topological charges in the field (where is the magnetic anisotropy vector).

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Observation of a topological transition in the A3 vortices

Abstract

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