Surface spin waves in 3He-A, a probe for vortex phenomena in narrow gaps

P. J. Hakonen*, K. K. Nummila, J.T. Simola, L. Skrbek, G. Mamniashvili

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)
36 Downloads (Pure)

Abstract

We report measurements on a new collective spin-wave mode trapped by the textural boundary layers of 3He-A within a stack of thin Mylar plates. The surface mode was seen as a new peak in the cw NMR spectrum measured at H0=284 Oe. Rotation of the sample, with orthogonal to the gaps, increased the spectral weight of the surface mode, indicating an increase in the textural boundary layers caused by a counterflow-induced transition. This phenomenon was used to study vortex creation and persistent currents.
Original languageEnglish
Pages (from-to)678-681
Number of pages4
JournalPhysical Review Letters
Volume58
Issue number7
DOIs
Publication statusPublished - Feb 1987
MoE publication typeA1 Journal article-refereed

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